Alejandro's father: According to Chris and his Total Drama Online profile, he is a diplomat. This could explain Alejandro's great knowledge of the other countries, cultures and his abilities to manipulate people by smooth-talking to them.
Alejandro's mother: First mentioned by Alejandro in Anything Yukon Do, I Can Do Better, when he tells Bridgette that his mother "raised a gentleman." His mother is mentioned again in Sweden Sour, where he offers Courtney a cookie and some advice that his mother gave him. Alejandro's mother is once again mentioned in Rapa Phooey!, when Alejandro shows Cody the sweets he gets delivered as a reward for winning the challenge and states that he "does not have much of a sugar tooth" and that his mother told him that he is sweet enough already.
Alejandro's uncle, Julio: Mentioned by Alejandro in The EX-Files. Alejandro claims that his uncle is a hypnotist, and that he learned several of his uncle's hypnotism techniques, which he later used on Owen.
Alejandro's brother, Carlos: Alejandro reveals in African Lying Safari that he has a brother who is a professional soccer player, and learned how to play the sport from him. He seems to have a better relationship with Carlos than he does with José, as he was rather happy when talking about the former than the latter.
Alejandro's older brother, José: Unlike how he views the rest of his family, Alejandro has made it clear that he hates José enough to the point of never mentioning him unless it is in a negative way. He is first mentioned in Hawaiian Punch, when Alejandro states that Jose will embarrass him to no end if he loses to Cody. Alejandro reveals later in the episode that the reason he hates being called "Al" is because it is a derogatory nickname given to him by José. He physically appears in Suckers Punched to fight Alejandro. Though they had an established family code of "never hitting the face", Alejandro almost violated this rule by knocking out José as he overestimated his younger brother's patience by indirectly insulting his crush Heather (who's personality he considers unattractive).
Twin sisters:Amy and Samey are twins, with Amy being older by seventeen minutes, who usually torments her younger sister. The only difference between them in terms of their appearance, however, is that Amy has a beauty mark underneath her right eye.
Mother: Mentioned by Amy in I Love You, Grease Pig! when she says that she and "Mommy" had to wait seventeen minutes for Samey to come out. Their mom was then mentioned by Samey in A Blast from the Past, who says she dislikes Amy.
Beth's father: Shouts at Beth to be quiet in her audition tape. In The Chefshank Redemption, when Gwen barfed up her retainer onto the ground, Beth explains that her father would have been very angry at her if she had lost it. In her Total Drama Island profile, it says that Beth calls him 'Pa'.
Beth's mother: First mentioned on Beth's Total Drama Island profile. She loves her daughter very much, and the feeling is mutual with Beth. Beth talks about how her mother has encouraged her to follow her dreams and never give up, and that if she concentrates, her dreams will come true. In Monster Cash, Beth claims her mother said her world would open up when she got her braces removed. In her Total Drama Island profile, it says that Beth calls her 'Ma'. She also says if she wins the million dollars, she will take her mother and Lindsay on a cruise.
Brick's mother: Brick mentioned that he always wins the "letters home to mom" medal. Nothing else is known about her, but he loves her a lot since he sends plenty of letters to her. In Ice Ice Baby, Brick said that his mother is a strong woman.
Bridgette's mother: First mentioned on her official Total Drama Island profile. They are very close, as it is said that Bridgette's mother is proud of her daughter for her generosity and being on the honor roll at school. It is even said that Bridgette's best friend is her own mother. She is mentioned again on her Total Drama World Tour profile when she states that her best childhood memory was when her mother took her surfing for the first time when she was five.
Brody's sister: Mentioned in Ca-Noodling. Brody once babysat for her, only to have the individual he was babysitting get eaten by a crocodile. It is unknown whether she is older or younger than Brody, let alone whether Brody was looking after a pet or child.
Cameron's father:According to Fresh TV's defunct Tumblr account, nothing is known about Cameron's father.
Cameron's mother: Mentioned in his audition tape that she is very overprotective of him. She is later physically seen in a video call from home in Brain vs. Brawn: The Ultimate Showdown, where she tells him he has to win to fuel the air for his bubble. She calls her son "Cammy Bear." In terms of appearance, she strongly resembles her son, but with a large afro and a different eye shape. According to Cameron's Total Drama Online profile, she is a disco fan, and always makes Cameron lunch.
Carrie's sister: Devin mentions her in New Beijinging and reveals that she dared Carrie to eat a worm when she was younger and Carrie puked for six days straight afterwards. It's unclear whether the sister is older or younger than Carrie herself.
Chase's aunt, May: She was mentioned in Paddle Field Earth, when Chase was trying to fake his death in front of some bears. While he was acting, he imagined he was talking to his aunt, telling her to tell his mother that he never ate his broccoli and instead gave it to the dog.
Chase's mother: She was mentioned in Paddle Field Earth, when Chase was trying to fake his death in front of some bears. He apparently used to hide the fact that he gave his broccoli to his dog from her.
Chef's mother: She was only mentioned in the exclusive clip of Brunch of Disgustingness, when he says that his mother was right when she had told him to become an accountant.
Chef's grandmother, Axe: Axe Hatchet is introduced in The Pink Painter Strikes Again as part of the "Red Light, Green Light" challenge. At first, everyone thought she was a sweet old lady. However, she was later recognized by Ripper as the "greatest pitcher in the history of the Women's Baseball League." She ends up getting everyone except Bowie and Nichelle out with the balloons, taking out 14 of 16 contestants. She was taken by surprise after Nichelle unleashed her abilities, resulting in her dropping the balloon she was holding.
Stepbrothers: Lorenzo and Chet have been stepbrothers for a year prior to the Race, following the marriage of Chet's mother and Lorenzo's father. Despite this, the two are mortal enemies and are constantly at each other's throats. To put an end to this, their parents forced them to enter the competition so they can learn to get along. The two finally end their feud in Shawshank Ridonc-tion and become friends after they discover that they share the same interests.
Chet's mother: Chet calls her in None Down, Eighteen to Go—Part 2, telling her that he is not going to be friends with Lorenzo and requests that she divorce Lorenzo's father.
Lorenzo's father: Lorenzo mentions him in None Down, Eighteen to Go—Part 2, saying that he's a motivational speaker and uses this in an attempt to make Chet eat the stew faster.
Chris's cousin, Jerd McLean: Little is known about him except that he has a thick Newfoundland accent and is very difficult to understand, with Chris being the only character to fully comprehend him. Alejandro is also able to partially understand him, but had difficulty figuring out what Jerd was saying. He appears in Newf Kids on the Rock and plays a role in the challenge when the contestants have to translate a sentence he dictated. Jerd apparently dislikes Noah, stating that he is "as smart as a bag of rocks." Each time Jerd speaks, the music from Sea Shanty Mix is played.
Chris's mother: Dakota mentions Chris's mother in The Treasure Island of Dr. McLean. When Chris pulls up to the campers to describe the episode's challenge, Dakota interrupts him and mockingly asks him "How many times did you call your mommy today?" Topher also mentioned her in Three Zones and A Baby, having apparently sent Chris a picture of a cat to his phone.
Cody's father: Shouts at Cody to be quiet in his audition tape. He works as a professor and once went on a journey of enlightenment simply so that he could beat Cody in a game of chess. It is revealed in Awwwwww, Drumheller that he and his wife forgot Cody's birthday the previous year.
Cody's mother: In Total Drama Online, Cody says that she is a psychologist who gave him fifty dollars when he beat his father at chess. It is revealed that she and her husband forgot their own son’s birthday the previous year. She apparently wears the same pants as Sierra, though considering Sierra's tendency to stalk, it is likely that it isn't coincidental.
Cody's aunt: In Walk Like an Egyptian—Part 2, Sierra reveals she called Cody's aunt and posed as a telemarketer to get her to expose secrets about Cody.
Crimson's grandmother: Mentioned in Little Bull on the Prairie, Crimson states that when she was younger, she spent most of her summers at her grandmother's farmhouse.
Dakota's father: Mentioned in Bigger! Badder! Brutal-er!, when Dakota had a difficult time figuring out how to use a hacksaw, Dawn told her to pretend it was "daddy's steak knife." Her father is also mentioned at the end of Ice Ice Baby where he calls and pays Chris an unknown amount of money to get Dakota back on the show. Chris accepts it and brings Dakota back on, albeit as an intern.
Dawn's parents: Only mentioned in her Total Drama Online profile. Not much is known about them, but Dawn's favorite childhood memory is telling her parents that she was great at reading people's minds.
DJ's brothers: Mentioned in Up the Creek. They dared DJ to jump off the high dive when he was eight years old, which resulted in DJ "inventing" the wedgie flop. It is unknown how many brothers he has. However, considering the fact that DJ sometimes calls male friends "brothers", he may just be referring to his friends and not actual family members. It was later confirmed by Fresh TV's defunct Tumblr account that those "brothers" are indeed DJ's siblings.
Duncan's parents (left and right) and parole officer (center).
Duncan's parents: Duncan's mother is blonde and looks somewhat like an adult version of Lindsay or Bridgette, but with shorter hair and Duncan's teal eyes. His father is a stern looking person who bears a strong resemblance to Duncan and seems to be aging. Duncan's Total Drama Island profile claims that both of his parents are police officers. Duncan's mother loves him very much, despite his many arrests. His father, however, seems to have a great contempt for the latter being a "criminal." On the video, he openly questioned if he should love his son, in which his wife scolded him for saying that. Duncan's father is bald and wears hairpieces, which Duncan sold as pets once. This amused his mother, as she seems to dislike her husband's hairpieces. Duncan's mother was also mentioned in Mutiny on the Soundstage, when he says that she made him join the muskrat scouts to learn how to tie knots. He also explains that his mother never realized that the knot tying would come in handy. It is also mentioned in this episode that he calls his mother "Ma." Duncan loves his mother very much, as he wrote a letter wishing her happy birthday even when he is in prison after being eliminated in You Regatta Be Kidding Me.
Duncan's brothers: Duncan also mentions his brothers in the confessional in That's Off the Chain!. He says that he and his brothers had stolen bikes from the "nerds down the street" and smashed them against the school wall. They were then forced to rebuild them as punishment. They are mentioned again in The Sand Witch Project, where Duncan tells his teammates about how he and his brothers would cover themselves in fake blood and try to scare kindergartners on Halloween, even causing up to a dozen five-year-old children to have seizures.
Extended family: Duncan's Total Drama Island profile mentions that his aunt, his cousins, grandmother and many other relatives are all police officers.
Father/Son: As Dwayne spends most of his time in the office, he and Junior don't spend much time together so he viewed the race as a chance to do some father and son bonding. Although, this often leads to embarrassment for Junior whenever he reveals embarrassing secrets about him on the show. Dwayne's incompetence during the race often causes Junior to take the lead and see his dad as a liability. It isn't until Little Bull on the Prairie that Junior begins to appreciate his father and the two grow closer together.
Wife/Mother: Mentioned several times by both Dwayne and Junior whenever Dwayne says something that might offend her and his son reminds him that she'll be watching the show, which makes him correct himself. Dwayne says in Brazilian Pain Forest that he believes that 'a happy wife means a happy life'.
Sisters: Kitty and Emma have been close since they were young, but things changed after the latter is dumped by her boyfriend, Jake. The breakup strained Emma's relationship with Kitty, as Emma became less trustful of others. Early on in the race, Emma underestimates her sister several times and blames her for circumstances that were not under her control. Even when Kitty is successful at something, she would downplay her achievements. However, Emma would eventually start loosening up and appreciating Kitty's efforts and eventually develop a relationship with another contestant, and by the time of their elimination, she does not blame Kitty for their loss and is happy to still have her sister.
Grandmother: Mentioned in Hawaiian Honeyruin. While trying to encourage Kitty to dive into the bay, Emma brought up the pool in their grandmother's condominium.
Emma's mother: Emma mentions her in The Truth, The Pole Truth and Nothing But the Truth during the challenge. When Chase tries to list the good things he did for her, he tells her about the time he got Emma's cat out of a tree. Emma points out that Chase cut the tree down and it fell on her mother, which injured her to the point where she calls Emma "Jeff".
Emma's uncle: Emma mentions him in The Truth, The Pole Truth and Nothing But the Truth during the challenge. When Chase tries to list the good things he did for her, he tells her about the time he donated a kidney to her uncle, though Emma points out that he gave her uncle a goat kidney that he got from the butcher.
Ezekiel's mother: Never appeared on camera, but she screamed when Ezekiel accidentally shot her with an arrow in his audition video. It appears that they have a good relationship, and she serves as his homeschooling teacher. In Skatoony, Ezekiel mentions that his favorite teacher had a root canal at the dentist. When Chudd asks if he wants to give a shout out, Ezekiel says "Sure, hi Mom!"
Ezekiel's father: Mentioned in Not So Happy Campers—Part 2 when Ezekiel says that his father instructed him to look after the girls if they needed help, meaning he was most likely the sexist influence on his son. He similarly stated this in his online biography on the Canadian site for Total Drama World Tour, where he said that his father instructed him to look out for the girls, which he didn't get, since they were all stronger than him.
Geoff's parents: Only mentioned on Geoff's Total Drama Island profile. They are said to be Bohemians who met, married and conceived Geoff on a beach.
Geoff's mother: Geoff mentioned his mother in Aftermath Aftermayhem, when he said, "My mom always said, if you can fart and burp at the same time, you have no soul," making an obvious remark to Blaineley's footage. He also mentioned his mother in his Lame-o-sine video with Bridgette, when he says that money doesn't buy happiness, but his mother's mac and cheese does.
Geoff's brothers: Mentioned in his Total Drama Island profile, where it says that Geoff has four brothers that are all younger than him. However, in Brunch of Disgustingness, Geoff gives credit for his monstrous burping skills to his "big bro" back home.
Geoff's grandmother: Mentioned in Mediterranean Homesick Blues, Geoff states that she used to tell him that 'If you swim in a shark's mouth, you got to keep on swimming'.
Gwen's mother: Her mother has brown hair, a pink dress with a pink jacket over it and pink heels. Gwen's mother loves her daughter a lot and even paid a neighborhood girl to pretend to be her (much to her son's embarrassment). She looks very similar to Gwen without the relaxed eyes. In Gwen's profile, her mother is currently single, as Gwen and her younger brother's father does not appear in Gwen's video message from home.
Gwen's brother: Her younger brother has brown hair, a green T-shirt with a skull on it, jeans, sneakers and a backwards facing baseball cap. He slightly resembles Ezekiel due to the appearance of his hair, jeans and sneakers. His voice and appearance also seem to resemble Cody's, making Gwen's comment about Cody being like an "obnoxious little brother" seem uncanny. It is revealed in The Chefshank Redemption that her brother puked on her in the tilt-a-whirl. It is also revealed in Mutiny on the Soundstage that Gwen's brother owns a "Gibson" guitar. Her original online profile states that she took care of her brother while they were younger, and that they are very close and have lots of fun together (an example being when they put beef bouillon cubes in the Community Pool). Gwen admitted that her brother was the reason she joined the show, as he dared her to send in an audition.
Gwen's father: He doesn't appear outright in the show or is mentioned in the Total Drama Island profiles or in Total Drama Online, but former Fresh TV employee Julie Giles revealed that Gwen's family underwent an unfortunate divorce by the time she arrives at Camp Wawanakwa, thus explaining why Gwen's father wasn't present in her video message from home.
Gwen's grandmother: In Total Drama Online's "Get The Look", it’s stated that both Gwen and her nana use the same hair dye. This hints that her grandmother is also a goth.
Harold's mother: Mentioned in If You Can't Take The Heat... when DJ points out that she sews Harold's name onto the labels of his underpants. Harold plans to ask her if he and Leshawna can move together into his mother's basement when they turn thirty years old in Total Drama, Drama, Drama, Drama Island. In Beach Blanket Bogus, Heather claims that the only "lady fan" Harold actually has is his mother. In One Flu Over the Cuckoos, he says "Mother, is that you?," mentioning her again. It is possible tha t his parents are divorced (a point in this case would be that he mentions the possibility of divorced parents, or being fat at childhood, to be the cause of Heather's mean character, stating that he understands her); his father has never been mentioned once. In Aftermath: Revenge of the Telethon, Harold's mother donated $200.00 to the show in exchange that Harold cleans his family's garage.
Harold's father: Never mentioned on the show, though it’s possible that he shares his full name with his son, as Harold claims he's the fifth Harold Norbert Cheever Doris McGrady.
Harold's sister: Harold mentions her in the reunion special. Harold reads her psychology books, insinuating that Harold's sister is older than him. However, his Total Drama Island profile stated that she is younger than him.
Harold's brother: Only mentioned in his official Total Drama Island profile. He is older than Harold, and apparently does not hold much respect for him. It is said that Harold's older brother has called him an over-exaggerating, melodramatic fret-bucket and finds him weird, as with his sister.
Heather's parents, Moomsie & Poopsie: Heather's parents appear to have a strained relationship with their daughter. In her video log, Heather's mother and father are shown throwing a party in her absence as movers remove Heather's belongings from the house. Heather's father mentions one of his hobbies being golfing and Heather's mother reveals she enjoys getting pedicures. This shows the family is wealthy. Later in One Flu Over the Cuckoos, Heather leaves all her belongings to her mother in a written will and had the option of spending time away with her had she been chosen to accept the prize. After Heather's elimination in Million Dollar Babies, she reveals in her Lame-o-sine interview that she would like hair extensions but says her father is so cheap she will likely end up with "pony hair". She then decides to cut off her mother's hair while she sleeps, mentioning that "she's always had nice volume". Heather also mentions her parents in The Aftermath: III, saying that they tried electroshock therapy on her when she was younger to make her nicer but to no effect. According to Heather's Total Drama World Tour biography, she forced her parents to buy her Guide Gal cookies as a child. Heather's mother is voiced by Julie Lemieux.
Heather's brothers: Heather is revealed to have more than one brother in One Flu Over the Cuckoos when she calls her brothers and sisters "lazy slackers". Heather's little brother Damien is mentioned in her Total Drama Island biography. It’s revealed that Damien enjoys playing pranks on Heather such as putting glue in her hair conditioner. It also says she dislikes him suggesting they do not have a very good relationship.
Heather's sisters: In One Flu Over the Cuckoos, it’s revealed that Heather has more than one sister who she doesn’t get along with. She considers all of her siblings to be lazy slackers. Heather's sister is mentioned again in Ocean's Eight - Or Nine when Heather says she picked her sister's diary with a bobby pin.
Izzy's mother: Never appears on-screen, but calls Izzy at the end of her first audition tape. Izzy shouts "Sorry mom!" in her second audition after setting off the smoke alarm by twirling fire batons indoors. From the way she talks to her, it can be assumed that Izzy does not have a good relationship with her mother (or that they often communicate by shouting at each other from across the house). Izzy may have just been yelling since she was making an audition tape and her mother interrupted her.
Izzy's father: Only mentioned on Izzy's Total Drama Island profile. Very little is known about him.
Izzy's brother: Mentioned in That's Off the Chain! According to Izzy, he was previously an auto mechanic before getting hit by a car, developing a fear of all motor vehicles afterward. Due to his occupation, he is most likely older than Izzy. Because she learned from studying her brother's skills, Izzy was able to quickly assemble her bicycle for the challenge.
Izzy's uncle: Mentioned in Wawanakwa Gone Wild! He’s an artist. He tried to emulate Vincent Van Gogh by cutting off part of his ear, but becomes scared midway, leaving part of it hanging, which then apparently fell into Izzy's salad.
Izzy's grandfather: Mentioned in Total Drama, Drama, Drama, Drama Island when Izzy reminisces in the confessional stall about scaring him so badly that he wet his pants one time.
Izzy's great-grandmother, Mavis: Mentioned in Riot On Set. Izzy claims that she is a reincarnation of her. Izzy personified her as having a distinct Scottish accent, strongly hinting towards the origins of Izzy's family.
Twin brothers: As their team name the "Adversity Twins" suggests, the twins face many struggles as they share many of the same allergies, phobias, disorders, ailments, and accidents that plague them on a daily basis. But at the same time, they have a never give up attitude when it comes to facing whatever life throws at them. They are also known to go to the same high school and presumably have gym class together. Being the older twin, Jay is protective of his brother and is always there to give him moral support.
Mother: Jay mentions her in Hello and Dubai when he gets scared by the challenge and asks Mickey to tell her he loves her.
Josee's mother: According to Jacques, tantrums run in Josee's family. Like Josee, her mother believes winning is everything and that bronze is the "medal of failure." In Hello and Dubai, Jacques mentions that one time he was late picking up Josee from practice, her mother attacked him with a lamp. Josee then adds that she doesn't miss that lamp, to which Jacques adds 'or her mom'. This could mean that Josee’s mother is deceased as Josee looked up to the sky when talking to her mother before laughing evilly.
Julia's sister, Megan: She is mentioned briefly in You Poor Saps when Julia and MK pushed a trashcan onto Zee. Julia said that doing that was almost as fun as telling her sister that her bunny was haunted, suggesting that she enjoys bullying her sister. She later says during Soar Losers that she is willing to give her wardrobe to anyone in the possible event of her death unless it's Megan, as according to her, she looks horrible in everything.
Julia's parents, Greg and Judy: Mentioned in Fun Fight at the O'Cake Corral in a confessional by Julia. Owned a bake shop called "Sweet Little Julia's" that they made her work at when she was a kid. Julia refers to them by their first names and doesn't talk to them in any way besides through her lawyers.
Julia's Grandmother - According to Zee, Julia once stole a pair of feather earrings from her.
Julia's uncle: Mentioned in Breaking Up is Hard to Do, when MK claims to Wayne that Julia plans to ask her uncle, who is a sporting brand president, to cancel the annual hockey season in an attempt to have Julia voted off. However, considering that MK was desperately lying to not be voted off, it's ambiguous if Julia's uncle even exists and if he even works as a sporting brand president if he does.
Justin's mother: Only mentioned on Justin's Total Drama Island profile. It says that Justin "was a test tube baby and his mother paid handsomely for that test tube."
Justin's aunt: Mentioned by Beth in Mutiny on the Soundstage. Beth said that he cried at her wedding and that her full name is Lady Cici Mimi Didi Leduda.
Katie's mother: Mentioned in The Sucky Outdoors when she and Sadie reminisce about their childhood when they both got lost in a mall, causing their mothers to panic.
Mother/Daughter: Being a loving mother, Kelly tends to be patient with her disrespectful daughter and gives her anything she wants. Taylor; however, misbehaves with her mother all the time, blaming her whenever anything goes wrong and treating her like a doormat. It isn't until Hello and Dubai that Kelly decides to teach her daughter a lesson until she apologizes. The race ends up improving their relationship, with Kelly taking Dwayne's advice of keeping boundaries by cutting off Taylor's allowance.
Husband/Father: Taylor likes her father significantly more than her mother, as he spoils her beyond measure and because they both have a mutual dislike for avocado. He is known to own a trophy store, from where he gave his daughter trophies and medals, making her believe that she is good at everything she did, until her mother told her. Kelly is apparently his supposed trophy wife.
Leshawna's mother: Mentioned in Brunch of Disgustingness briefly, when Leshawna says her mother taught her that nothing in the world came for free. She used this lesson to warn Bridgette about getting too involved with Heather, as it may eventually lead to her being manipulated.
Leshawna's cousin, Leshaniqua.
Leshawna's cousin, Leshaniqua: Appears in One Flu Over the Cuckoos when Leshawna is able to visit the spa with her after winning the reward challenge. Her design is directly based on one of Leshawna's prototype designs from Camp TV, only with an altered color scheme. They appear to be very close, as Leshawna refers to Leshaniqua as her very "best" cousin and possibly her very best friend.
Lightning's father: Seen in a video call from home in Brain vs. Brawn: The Ultimate Showdown, though his face is not shown. He doesn’t appear to be very affectionate, never even turning to look at his son in the video call. Lightning's father seems to share the same personality as his son, being arrogant, cocky and self-inflated about his son's abilities. It's implied he holds high standards for Lightning, who feels pressured to meet them and not disappoint his father. Presumably his surname is Jackson.
Lindsay's father: Only mentioned on Lindsay's Total Drama Island profile. Apparently he’s very wealthy and is the type of father who spoils his children rotten. He’s said to have a vintage Ferrari (which he cares very much for), calls Lindsay his "little chipmunk” and has thrown an extremely expensive Sweet Sixteen birthday party for her.
Lindsay's mother: Only mentioned on Lindsay's Total Drama Island profile; she apparently is concerned that her daughter may be too easily tricked and taken advantage of by people with moredominant personalities.
Lindsay's sister, Paula: Mentioned in Not Quite Famous. She had diarrhea on a date and Lindsay had to bring her toilet paper as a result, a fact Lindsay never revealed to anyone before accidentally saying it on international television.
Lindsay's other sister: Mentioned in The Sand Witch Project; Lindsay says that when she and her sisters choose where to go shopping she is always the third vote. This reveals that she has another sister, other than Paula.
Lindsay's grandmother: Mentioned in One Million Bucks, B.C. Lindsay says that she accidentally set fire to her grandmother's house twice because of a flat iron when she was twelve-years-old.
Mike's Uncle Vinnie: Mentioned in Total Drama Online that Mike's first job was working with his uncle fixing cars. Although the way the interview is written implies that Vito took over to answer the question. So whether Mike has an uncle or the uncle is part of Vito's back story is unknown.
Manitoba's wife: Mentioned in Total Drama Online that Mike's dream date would be to take her prospecting in the Yukon. Although the way the interview is written implies that Manitoba Smith took over to answer the question. Her existence is a mystery since she has not been mentioned on the show and Manitoba has been known to flirt with other women.
Millie's parents: She mentions them in her audition. According to Millie, they raised her under the thinking that, back in their times, all you had to do was to write a novel, win a Gemmy award and cure polio to achieve something, leading Millie to dismiss her generation's way to gain fame as something stupid.
Noah's parents: Only mentioned in Noah's Total Drama Island profile. There is not much revealed about either parent except for the fact that they noticed Noah's advanced intelligence at a very early stage and have a very large family.
Noah's siblings: Only mentioned on Noah's Total Drama Island profile. The genders and ages of these siblings are unknown, but what’s known is that Noah is the youngest and most intelligent of his siblings. Overall, he has eight siblings. It’s from having to endure this obstacle that Noah gained the skills he has today.
Noah's cousins: Mentioned in Newf Kids on the Rock. Noah mentions that his younger cousins aren’t allowed to watch the show.
Noah's aunt: Also mentioned in Newf Kids on the Rock. She’s the mother of Noah's younger cousins and prevents them from watching Total Drama.
Owen's parents: His parents are seen in a Video log from home. His father is extremely obese, sweaty, balding and wears glasses. Owen's mother has a strong resemblance to Sadie, with both even being voiced by Lauren Lipson; the most notable difference between the two is Owen's mother's blonde hair in contrast to Sadie's black hair, and different clothes. She’s also obese, but not as large as Owen's father. They have a good relationship with their son, to the point of overindulging him, as his mother sends him a care package filled with gravy. Owen's mother appeared in The Aftermath: III as a video guest in order to tell Owen that the family was broke from spending $50,000 on a cheese cellar. According to Total Drama Online, she bought Owen's shoes out of a bin.
Owen's grandfather: Owen mentions his grandfather in The Sucky Outdoors where the grandfather himself was shown in a doodle-styled flashback as Owen tells stories (some true, some false) about the two of them and their excursions in the great outdoors. If the flashback is anything to go by, Owen's grandfather is also obese, with a large gray beard and mustache. He was depicted wearing stereotypical Canadian hunting gear.
Owen's brothers: in Total Drama, Drama, Drama, Drama Island Chris introduced the winner of Total Drama Island as being the "youngest of three brothers”. However, they’re revealed to be younger than him in the third aftermath, when he blurts out that he pushed one of them down a flight of stairs and blamed it on the other. Their names are revealed to be Johnny and Gavin.
Owen's uncle, Max: Owen is revealed to have an uncle Max who wears a toupee which Owen glued to a goat's butt at a petting zoo when he was in fourth grade.
Priya's parents: Her parents are seen in her audition. According to Priya, they are great fans of Total Drama Island (2007) and raised her to win reality shows just in case there was ever a Total Drama reboot. It seems that Priya's parents birthed their daughter out of monetary gain and are emotionally neglectful, as they particularly gave birth to her in a snowy mountain so she could make her first bungee cord jump with the umbilical cord, forced her into dangerous challenges involving animals, once enrolled her in a catapult camp, left her to survive in a forest and banned her from attending medical school. Despite this, Priya does seem to love them, as she is outraged upon reading the things Millie wrote about them.
Raj’s mother: When Raj and Wayne are discussing secrets that they share with each other in Severe Eggs and Pains, they mention a time Wayne threw up in Raj’s mother’s car.
Ripper's father: Ripper mentions him in Severe Eggs and Pains after dropping the egg. In his confessional, Ripper doesn't understand why Chris got angry at him for dropping the egg, citing that his dad often dropped him and his three brothers when they were babies and nothing bad happened. This highly suggests Ripper's father is an abusive and careless parent, possibly being the role model Ripper had growing up and the reason why his son is such an idiot.
Ripper's mother: Ripper mentions her in Severe Eggs and Pains after dropping the egg. In his confessional, Ripper complains about his loss and agrees with his mom that babies are a mistake like she often says. This highly suggests that Ripper's mother is a neglectful and cruel parent, as she openly told her son that she wishes he hadn't been born.
Ripper's brothers: Ripper mentions them offhandedly in Severe Eggs and Pains after dropping the egg. In his confessional, Ripper mentions that Chris shouldn't have gotten angry at him for dropping the egg, citing that he and his three brothers were often dropped as babies by their father and "two of them" turned out fine. This possibly implies that either two of his siblings were at least left with serious damage or worse or Ripper is one of the two who did not turn out fine and is in denial about it.
Ripper's Grandmother: Ripper mentions her in The Wheel of Vomit as he and Julia are about to eat what he thought was pasta that he eats that every Sunday at his Nonna's.
Rock's parents: Rock mentions his parents, when he reveals that the reason he wants to win the race is so that he can finally move out of his parent's basement because of their constant pleads, but only to build his own basement. His mother is later mentioned again in Down and Outback by Spud, who states that Spud will one day get Rock killed.
Rodney's father: Mentioned in So, Uh This Is My Team? in a confessional. The re:Fresh blogs have stated he is a single parent raising eight children. His wife either passed away or they’re divorced.
Rodney's mother: She doesn't appear outright in the show or is she mentioned in the Total Drama: Pahkitew Island character biographies, but former Fresh TV employee Julie Giles revealed that the life of Rodney's mother was unfortunately claimed by an accident that involved a stampede of cattle, a water tower filled with molasses and an American Civil War-era cannon that still had a surprising amount of functionality left in it. Her lack of involvement in Rodney's raising may be one of the reasons Rodney struggles too hard in socializing with his female peers.
Rodney's brothers: Mentioned in So, Uh This Is My Team? in a confessional. The episode states Rodney has five brothers, but Fresh TV's now-defunct re:Fresh blogs claim he has seven.
Ryan's parents: Mentioned in How Deep is Your Love. Whenever they have an argument, his father will gratuitously agree with his mother until she either calms down or leaves.
Sadie's mother: Mentioned in The Sucky Outdoors when she and Katie were arguing. Sadie mentioned Katie crashing her mother's car into a snack shack. She also reminisced with Katie about their mothers panicking when they were lost in the mall as children.
Sadie's sister, Cindy: Mentioned in The Aftermath: I when Sadie says that Trent is "nuttier than my sister's peanut allergies"; then she waves to the camera and gives her a shout-out.
Sadie's aunt, Gwen: Mentioned in The Aftermath: II when Katie and Sadie talk about how they formed a "Trent Fan Club,” and Katie suggests it be changed to an "Anti-Gwen Club.” Sadie mistakenly thinks she meant "Auntie Gwen Club" and that it would be a club for her Aunt Gwen. She then waves to the camera and says "Hi Auntie Gwen" before she realizes her mistake.
Scarlett's parents: Mentioned in her audition tape when Scarlett introduces herself and explains the meaning behind her name.
Scarlett's brother: Mentioned in This Is The Pits! while Scarlett is using the confessional. It is unknown whether he is older or younger than Scarlett. As a revenge for pulling her hair, Scarlett made her brother's RC toys come to life and scare him every night for six years. Because of his sister's action, he is still under therapy.
Scary Girl’s mother: Mentioned in The Pink Painter Strikes Again revealing that she is one of the people that believes Scary Girl got voted off early for being too scary.
Scott's father: Scott's father recorded his son's audition tape for Total Drama: Revenge of the Island, and is mentioned by Scott. Scott refers to him as "pappy." Scott's father is revealed to be in the army in Moon Madness. Scott mentions in his Total Drama Online biography that his favorite childhood memory is when he got his parents to argue for the first time.
Scott's mother: Mentioned in Moon Madness where Scott states that she is a waitress. Scott also mentions in his Total Drama Online biography that his favorite childhood memory is when he got his parents to argue for the first time.
Scott's sister, Albertha: Mentioned in Suckers Punched where Scott states that he calls her Al for short. She is apparently a talented pig-caller.
Scott's cousins: Mentioned in The Obsta-Kill Kourse as they and Scott would usually compete for who would stay on the clothes line the longest over a nest of fire ants.
Shawn's uncle: In Sky Fall, Shawn mentioned that his uncle owned a tanning salon named Bernie's Tanning Salon (despite his name not being Bernie). Within a year, the salon went out of business as there weren't any customers.
Sierra's mother: Sierra's mother has a huge crush on Chris which is why Sierra knows many facts about him. She was mentioned by her daughter several times in Total Drama World Tour, regarding about her crush on Chris. After Chris ditches her in Planes, Trains, and Hot Air Mobiles, Sierra ordered her mother through the confessional to pack away all of her Chris shrine at home before she returns. A picture of her could be also seen as an item in Find It, one of the Total Drama games.
Sierra's grandparents: Sierra says that her grandparents were German in Slap Slap Revolution. It’s also hinted that Sierra's grandparents were also basket-weavers. They’re also fans of Chris, as Sierra describes herself as a "third-generation Chris McLean scholar."
Sierra's great-grandparents: Sierra has mentioned in Walk Like an Egyptian—Part 1 that she's a fourth-generation basket weaver, hinting that her parents, grandparents, and great-grandparents were also basket-weavers.
Sky's older sister: In A Blast from the Past, Sky tells Dave about her older sister and that she’s Sky's role model, meaning that they’re close. Sky also mentions that she almost made it onto the Canadian Olympic team for rhythmic gymnastics. In A Million Ways to Lose a Million Dollars, a woman who resembles Sky is seen outside the airport walking past Don. Fresh TV's Twitter later verified that she is Sky's sister. In the Italian dub, she is named Jane but it is unknown if this is actually her name or a placeholder name that was made up for her.
Sky's mother: In Sky Fall, after Sugar says a rhyme dealing with punching mothers, Sky states that she hopes their mothers don't meet each other.
Spud's mother: Spud mentions her in New Beijinging, saying his mother calls him a light eater, which meant that he starts eating as soon as the lights are on.
Staci claims that several ancestors have invented various things, such as swimming or log cabins. While said achievements appear exaggerated on the surface, Staci's audition tape shows seemingly legitimate monochrome photographs of some of them holding or interacting with the items they supposedly invented, which implies that Staci's claims may be true to some extent.
Sugar's younger brother: Mentioned in Three Zones and a Baby. Sometime in the past, Sugar lost him during a visit to town. As a testament to her poor memory, Sugar doesn't know her brother's name.
Sugar's uncle: Mentioned in Scarlett Fever when Sugar was surrounded by robot copies of Chris which reminds her of the time when her uncle built a robot army of his own by putting pictures of his face on donkeys wrapped in tin foil. His name was revealed to be Elliot in Sky Fall. The farm he owns is apparently where Sugar did her audition tape.
Sugar's mother: In Pahk'd With Talent, Sugar wishes that her mom was there to give her the "awesome pep talk" she gives Sugar before every pageant: however, it seems that talk is just yelling at her to hurry up and get dressed.
Sugar's grandmother: In Pahk'd With Talent, Sugar climbs to the top of the tree during Shawn's challenge because her grandmother said that in a battle, you always take the high ground. When it looked like she was about to fall, she said it would be grandmother's fault if she got hurt.
Trent's mother: Mentioned in Phobia Factor when Trent tells Gwen about how when he was four years old and his mother took him to the circus to see the elephants. For a moment, they were separated and when Trent was trying to find her, he ran into a mime, got scared and ran away, thus causing his fear of mimes since. He seems to have a close relationship with his mother. She was also mentioned in Brunch of Disgustingness when Trent said she and his father would hold him down and feed him broccoli. It is revealed in The Aftermath: I that his mother was the one that told Trent that nine was his lucky number after a wheel fell off of the toy train his grandfather gave him.
Trent's father: Mentioned on Trent's Total Drama Island profile. He has a double occupation as a lawyer/accountant, as both are involved in the area of law. He wants Trent to be an accountant, like himself, which Trent strongly dislikes and promises he will never pursue "in this lifetime.” In Brunch of Disgustingness, Trent threatens the campers, and says his father can sue them as he is a lawyer.
Trent's grandfather: Mentioned in The Aftermath: I. Believed to be very close to Trent, which led to Trent loving the number nine so much. He gave Trent a toy train with ten wheels as a gift. Right before he died, one of the wheels fell off, leaving only nine wheels on Trent's train. This was the main basis behind Trent's number nine obsession.
Tyler's father: First mentioned on Tyler's Total Drama Island profile. Tyler's father apparently is hooked up with major sports sponsors, which would explain the fancy athletic gear that Tyler has despite his lack of athletic skill. He is putting a lot of pressure on Tyler to win Total Drama Island, but is certain that his son will live up to the hype he has surrounded his son in. According to Tyler's Total Drama World Tour biography, his father once brought him to work as a junior sportscaster, but kicked Tyler out for running onto the court during a game.
Wayne's mother: Mentioned in Circling the Drain by Wayne. When Wayne was a baby, she fed him by throwing the food on his mouth like if were a hockey puck, inspiring him to do the same with a sick Raj.
Wayne's uncle: Mentioned in Fun Fight at the O'Cake Corral by Wayne. He has a farm in Saskatoon, allowing Wayne to catch chickens before he learned to skate.
Zoey's parents: Only mentioned in her Total Drama Online profile. Zoey says her parents were proud of her when she brought home her first finger painting.
