Alejandro's father: According to Chris and his Total Drama Online profile, is a diplomat. This could explain Alejandro's great knowledge of other countries' cultures, and his ability to manipulate people by smooth-talking them.
Alejandro's mother: Mentioned by Alejandro in Anything Yukon Do, I Can Do Better when he tells Bridgette that his mother "raised a gentleman." His mother was mentioned again in Sweden Sour when he offered Courtney a cookie and some advice that his mother gave him. Alejandro's mother was once again mentioned in Rapa Phooey!, when Alejandro shows Cody the sweets he got 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 he was 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.
Alejandro's brother, José: Alejandro mentions him in Hawaiian Punch, saying it would be an embarrassment to lose to Cody. He later appears in Suckers Punched to fight Alejandro.
Twin sister: Amy and Samey are twins, with Amy being the older sister by seventeen minutes, who usually torments her younger sister. The only difference between in terms of their appearance 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 and later 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 spits out her retainer, 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. 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 yet, but it is assumed that 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.
Cameron's mother: Mentioned in his audition tape that she is very protective of him. She is later 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 greatly resembles her son.
Chris' 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, music from Sea Shanty Mix is played.
Chris' mother: Dakota mentions Chris' 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 son's own birthday.
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.
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 on as an intern. It is also revealed during the conversation that Dakota and her father's last name is Milton.
Momma: Shown in his audition as a photograph, and later makes many appearances throughout the series.
DJ's brothers: Mentioned in Up the Creek. They dared DJ to jump off the high dive, 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.
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. His father is a stern looking person who bears a good 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 appears to love him very much, despite his many arrests. His father, however, seems to have a great contempt for him being a "criminal." On the video, he openly questioned if he should love his son, which his wife scolded him for saying. 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 so handy. It is also mentioned in this episode that he calls his mother "Ma." Duncan apparently loves his mother very much as he wrote a letter wishing her happy birthday even while he was in prison after being elimnated in You Regatta Be Kidding Me.
Duncan's brothers: Duncan also mentions his brothers in the confession stand in That's Off the Chain! He said 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-olds to have seizures.
Extended family: Duncan's Total Drama Island profile mentions his aunt, his cousins, and grandmother, and so on, who are all police officers.
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.
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, however.
Geoff's brothers: Mentioned in his Total Drama Island profile, where it says 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.
Gwen's mother: Her mother has brown hair, a pink dress with a pink jacket over it and pink heels. Gwen's mother seems to love 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 relaxed eyes. In Gwen's profile, her mother is currently single indicating that she and her husband are divorced or he has passed away.
Gwen's brother: Her brother has brown hair, a green T-shirt with a skull on it, jeans and sneakers. He wears a backwards facing baseball cap. He slightly resembles Ezekiel with his hair. 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 grandmother: in Total Drama Online Get The Look, it is 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 his parents are divorced (a point in 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 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 sister: Harold mentions her in the reunion special. Harold reads her psychology books, insinuating that Harold's sister is older 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: Heather's parents presumably don't have the best relationship with Heather. They are shown throwing a party in her video log, while movers are shown taking away her stuff. Heather's mother greatly resembles her. Her father wears glasses and is balding and his hobby appears to be golfing. Despite their daughter's attitude, the family actually appear to be quite friendly and polite. They appear to be wealthy, so it's possible that perhaps they spoil Heather. In Brunch of Disgustingness, Heather mentions that her mother always told her a lady can use a boost in the looks department, which turns out to be something her mother actually follows, as she mentions in the video log that her pedicures have not been as spiritual without her daughter around. Furthermore, Heather's mother worked at a beauty salon at one point, though whether she still does is unknown. Evidently, of all her family members, it is plausible that Heather is closest to her mother, as she is willing to leave all of her belongings to her in a written will in One Flu Over the Cuckoos and had the option of spending time with her away from the competition at a spa, had she been the one chosen to accept the prize. After Heather was eliminated in Million Dollar Babies and sent to the Lame-o-sine, she states that her father is so cheap she will probably end up with pony hair after she says the million dollars would have come in handy to get some hair extensions. She then ponders upon cutting off her mother's hair while she is asleep because apparently, her mother's hair has nice volume. Heather said in The Aftermath: III that as a kid, her parents tried electroshock therapy on her to make her nicer but to no effect or she was meaner as a child.
Heather's brother, Damien: He does not have a very good relationship with Heather either. In her Total Drama Island biography, it states that Damien enjoys playing pranks on Heather, such as putting glue in her hair conditioner.
Heather's sister: In One Flu Over the Cuckoos, it was revealed that Heather has a sister, whom Heather does not get along with as well. She considers both of them to be lazy slackers. Heather's sister was mentioned again in Ocean's Eight - Or Nine after Heather mentions that she could pick 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 has mentioned that her entire family is composed of geniuses like herself.
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 is apparently an artist. He tried to emulate Vincent Van Gogh by cutting off part of his ear, but chickened out and part of it was left hanging and 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: Mentioned in Riot On Set. Her name was Mavis, and she is apparently deceased since Izzy claims to be a reincarnation of her. Izzy personified her as having a distinct Scottish accent, strongly hinting towards the origins of Izzy's family.
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 of their childhood when they both got lost in a mall, causing their mothers to panic.
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: 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 does not 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 is very wealthy and is the type of father who spoils his children rotten. He is said to have a vintage Ferrari (which he cares very much for), considers Lindsay as his "little chipmunk,” and has thrown an extremely expensive Sweet Sixteen 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 younger 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 implies 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.
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.
Mike'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.
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 is known is that Noah is the youngest and most intelligent of his siblings. Overall, he has eight siblings. It is 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 little cousins are not allowed to watch the show.
Noah's aunt: Also mentioned in Newf Kids on the Rock. She is the mother of Noah's little 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, balding, and wears glasses. Owen's mother has a strong resemblance to Sadie, but she has blonde hair. She is also obese, but not as large as Owen's father. She even has the same voice over. They seem to have a good relationship with their son, possibly to the point of overindulging him, as his mother sends him a care package filled with gravy. Owen's mother also appeared in The Aftermath: III, claiming that the family was broke from spending $50,000 on a cheese cellar.
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 are 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 his other brother. 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 bum at a petting zoo when he was in fourth grade.
Rodney's brothers: Mentioned in So, Uh This Is My Team? in a confessional. The episode states Rodney has five brothers, but re:fresh blog says he has seven.
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 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.
Scott's father: Mentioned in his audition tape, and the person to record it. Scott refers to him as "pappy." Scott's father is revealed to be in the army in Moon Madness.
Scott's mother: Mentioned in Moon Madness where Scott states that she is a waitress.
Scott's sister: Mentioned in Suckers Punched where Scott says her name is Albertha but he calls her Al for short. She is also a hog caller.
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 may have to do with Sierra's many facts about him. In Niagara Brawls, Sierra questions her mother's crush on Chris. She also mentions her
A photo of Sierra's mom.
mother in African Lying Safari and Awwwwww, Drumheller. 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 is 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 is also hinted that Sierra's grandparents were also basket-weavers.
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 is Sky's role model, meaning that they might be close. Sky also mentions that she almost made it onto the Canadian Olympic team for rhythm gymnastics.
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.
Staci has a variety of relatives who she claims to have invented things, such as swimming or log cabins. However, it's questionable if said relatives are real.
Sugar's little brother: Mentioned in Three Zones and A Baby. Sometime in the past, Sugar lost him during a visit to town. As a jab 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 reveal 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 granny: In Pahk'd With Talent, Sugar climbs to the top of the tree during Shawn's challenge because her granny 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 granny'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 ten-wheeled toy train 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. Trent refers to him as "Granddad.”
Tyler's father: Only 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's surrounded him in.
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.
Trivia
Beth, Cody, and Zoey are the only known contestants to be an only child.
Gwen and Rodney are the only contestants known to have a single parent.
Gwen has only a mother, while Rodney has only a father.
Justin's mother calls him a "test-tube baby," hinting that Justin was most likely born via IVF.
All of the family members who physically appear on Total Drama are voiced by the same actors as their corresponding contestants.
Cameron's mother's top bears strong resemblance to the one worn by Sky, with the latter's being a recolor.
