Despite Courtney and Heather being placed on opposing teams in Total Drama Island, the two have a strained relationship from almost the start of the show, and this tension only intensifies throughout Total Drama Action. It is not until the two are placed on the same team in Total Drama World Tour that they really begin to clash. Initially, Courtney intends to join Gwen in voting Heather off, but after Gwen kisses Courtney's boyfriend Duncan, Courtney temporarily enlists Heather's help in voting Gwen off. Heather turns on Courtney when she begins attempting to throw their team's challenges and becomes involved with Heather's love interest, Alejandro.
In Total Drama All-Stars, the two don't have many interactions at first since they are placed on different teams, but as soon as Courtney moves to the Villainous Vultures, the conflict between the two starts again. However, their reunion doesn't last long as Heather is eliminated shortly after Courtney switches teams.
Courtney and Heather's rivalry first starts when Heather taunts the Killer Bass for losing twice in a row and sending home their strongest player. Courtney retaliates by flinging a spoonful of oatmeal at Heather, but it hits Gwen instead and Heather taunts Courtney for missing.
During the challenge, Heather throws a ball at Tyler for flirting with Lindsay. Courtney complains about this to Chef Hatchet but Heather feigns innocence and says it was a mistake, prompting Courtney to hurl a ball at Heather. Heather winces as she braces for impact, but the ball is caught by Owen. Later, Heather continues to mock the Bass for their poor performance. Courtney reminds Heather that the Bass still have a chance to win but Heather seems hesitant to believe her.
Courtney expresses her disapproval after Heather reads Gwen's diary out loud at the talent show, telling Bridgette backstage it was "so mean".
After learning she has reached the final three, Heather makes a confessional in which she sympathizes with Courtney due to the unusual circumstances of her elimination. However, it is implied this affinity was fake.
Heather argues that Courtney got eliminated fair and square, and does not deserve to re-enter the competition. Courtney, in return, responds that she and her lawyers "would beg to differ", explaining her victory over the producers in her lawsuit.
Heather states that out of all the remaining girls present, Courtney has the nicest hair, and attempts several times throughout the episode to steal it. When Courtney enters the cabin, Heather attempts small talk, saying "great to have your hair", but quickly corrects herself by saying "great to have you here", to which Courtney glares suspiciously at her. Eventually, Heather succeeds and snips off a small piece of Courtney's hair while she was in the confessional, and laughs crazily about it afterwards. Heather contains herself from laughing and tells the camera "I'm not crazy. I'm just bald."
When Heather is asked by Geoff during "Truth or electrocution" segment whether she thinks Courtney is a worthy competitor, she answers she does not, but is electrocuted for lying, indicates she does actually see her as one.
In the opening sequence, both girls are seen glaring at one another when all the contestants are forming a human pyramid, dancing and singing on top of the plane.
When Heather claims that Duncan may not be able to sing, Courtney angrily tells her that Duncan can do anything he puts his mind to. Courtney is also annoyed by Heather's bossiness throughout the episode, and the two constantly bicker. Some of this bickering includes Heather claiming she would stop being bossy when Courtney started to do things right. At one point during the episode, it is revealed that Courtney does not trust Heather. Courtney, along with Gwen, also laughs at her when she says to her teammates that they should listen to her more.
Courtney and Heather once again argue during this episode, particularly with Courtney obsessing over being the team's leader, and Heather standing against her doing so. They also bicker due to their contrasting points of view regarding who should do both challenges, resulting in them and Gwen quitting the challenge.
When Courtney and Heather arrive first for the sled challenge, Chris makes Courtney the "dog" even though she and Heather both arrived at the same time, because, alphabetically, Courtney's name comes first. Courtney protests against this, believing that it wasn't fair, leading to Heather comment that "she didn't invent the alphabet". Courtney is at the mercy of Heather for the rest of the challenge, with Courtney pulling the sled with the rest of her team, while Heather constantly whips her, using the excuse that "it makes her go faster". In the confessional, when she complains about Heather actually whipping her, Courtney vows that she will have her revenge. By the end of the episode when Team Amazon ends up in second place, Heather complains that they lost "despite all her hard work" when she, in fact, did nothing besides whip Courtney, which is met with furious glares from all her teammates, but especially from an infuriated Courtney.
Courtney and Gwen conspire against Heather, deciding that if they lose the challenge, they would vote her off. Courtney, mockingly declares they should "whip her off". In the confessional Heather shows no concern, stating they would not be able to vote her off, because she plans on proving her value by manipulating Sierra and Cody into an alliance to gain strength over those two. When Chris brings up the challenge being a "carriage race", Courtney complains that now Heather is going to make her the horse in this challenge after the last one. Later, when she goes back for Cody after he falls off their raft to Central Park, Heather complains that she's leading to them reaching last place. Later on, Courtney is hesitant towards Heather opening the final apple after they win the reward, noting that it could be useful to them and even tries to stop Heather before she throws the meat grinder found inside it off the plane, to no avail.
During Eine Kleine, Courtney tells Heather she would do a jig once Heather is out of the game. After Chris explains the first challenge, Courtney constantly reminds Heather of how they could have used the meat grinder, which was received in the previous episode, but thrown out of the plane because of Heather, in that challenge. She pokes Heather in the chest with her finger, and calling her a "self-involved, lazy, useless, formerly bald dimwit" in the process, and they both growl at each other. When Heather is complaining during the challenge, Courtney, along with her other teammates tell her to shut it. When Heather almost barf, Courtney orders her "Less yakking, more packing", to which Heather snaps back. Courtney is mostly mad at Heather for placing last in the challenge. Courtney cheers for Leshawna as she slaps Heather.
While Heather is applying her makeup, Courtney comments that her bruises and missing tooth suits her, which leads to Heather angrily glaring at her in response. At the end of the episode, Courtney helps Gwen convince Sierra to vote Heather off, and she is disappointed when it is revealed to be a false elimination. Heather swears to take revenge on everyone on her team who voted for her, being happy they fear her.
Heather is rather annoyed when Courtney brags about her ability to read brochure maps. After they and Gwen win the challenge for their team, they all high five.
At the beginning of the episode, Courtney accuses Heather of having a crush on Alejandro and starts making fun of her "dried up, black little heart", which the latter denies. When Courtney brags about her experience as a swimmer, she once again mentions being a C.I.T., causing Heather to get upset, saying that Courtney is more of a "B-I-T-C", before Gwen cuts her off. Heather also yells at Courtney for causing their team to arrive late and miss the rest of the challenge.
When Courtney and Heather are about to start their turn in the bobsled competition, Heather worriedly asks Courtney if her lawyers would make sure the show's contracts don't allow Chris to kill them. Courtney grins and says, "Not in my contract, but who knows what they put in yours" which frightens Heather.
When Heather asks if someone should search for Alejandro, Courtney ignores her plea. When Heather curses at Gwen for stretching her on the torture device, Courtney smiles at Heather and says "Every cloud has a silver lining", causing both her and Gwen to start laughing at her. When Team Amazon finds the room with a table full of treasures, Heather protests that Courtney and Gwen can go in while she guards the door. Courtney asks how that's fair, to which Heather yells that she should guard, because Gwen and Courtney hurt her ankles with the torture device.Duncan cheating on her with Gwen.
Heather sings Boyfriend Kisser with Courtney, and sides with her in the overall situation. As a result of this, she and Courtney (along with Sierra) form an alliance, with the sole purpose of eliminating Gwen. Courtney considers not saving Heather from being sucked into the alien portal, but she ends up saving her purely because she needs her to vote off Gwen. Heather gets mad that she took so long to help her, but is glad that at least they still had the artifact, until Courtney breaks it. She accuses Courtney of trying to lose, but Courtney denies while grinning to herself while Heather gives her a suspicious look. As Courtney obsesses over eliminating Gwen, Heather coyly says in the confessional how she's so crazy Izzy has been replaced.
Initially, Courtney doesn't want to make an alliance with Heather, but accepts the fact that Heather's vote would be important to eliminate Gwen. Courtney drags Heather into a dark closet on the plane and tries to cut a secret deal with her. Heather states to Courtney that she'll vote off Gwen with her, but reveals in a subsequent confessional that she had her fingers crossed in the dark in case Courtney tries to throw the challenge again. After seeing Courtney flirting with Alejandro, Heather notices Courtney is truly losing on purpose by slowing down her emu. In a subsequent confessional, she is angry about this, preferring winning over the chance to eliminate Gwen, and she states that she would definitely prefer voting off Courtney now instead. During Shear the Sheep, Heather confronts Courtney about her actions both on losing and Alejandro; Courtney states that Heather lost her chance at Alejandro, and that she should have a chance at him, while Heather tries to warn Courtney to stay on track and win the challenge. She also threatens to maim her face if she ever tries to lose on purpose again. Ultimately, Heather puts aside her animosity with Gwen and votes with her to try and vote off Courtney, which fails after Gwen loses the tiebreaker vote.
Heather witnesses Alejandro and Courtney flirting in the beginning of the episode, and becomes very jealous. She states that Courtney should be at home instead of flirting with Alejandro, wishing she was out. As Alejandro compliments Courtney's beauty, Heather snaps back a cough "Ugly!" while Courtney wishes she's not around. Heather tries to make Alejandro stop flirting with Courtney by pretending her butt sat in some gum so Courtney doesn't get as much attention; an attempt that fails.Courtney tells her team to lay down all the pieces of a boat so they can know what they have to build for the challenge. Heather disagrees, saying it'll only slow them down. She thinks that Courtney is just trying to lose on purpose again. Heather continues with what she was doing and Courtney tries to stop her. They start fighting until Cody constructs a giant wooden version of Gwen's face. When picking a captain, neither want the other to have the role. At the elimination ceremony, Heather tells Courtney she is going to be eliminated until Chris reveals it is a fake elimination, much to Heather's disappointment.
At the end of Blainerific, both girls gleefully mock Blaineley in unison while smirking at each other. After Sierra denies being paired up with Alejandro, Heather quickly goes and helps him up, making them partners which caused Courtney to become jealous. Later when Alejandro helps Courtney get to her wedding dress, Heather gets jealous, stating in the confessional that each groom gets only one bride. In the second challenge when they get a head start and start talking about who to vote off. Heather warns Alejandro that Courtney is smart and that she wants her off so much that she gets mad and makes her and Alejandro fall off the rope. During the challenges Courtney changes her to-do list to eliminate Heather in almost all her top five goals. In the end at the elimination ceremony when Heather is announced to have two votes she shouts in outrage, asking if Courtney voted twice.
Heather and Courtney fight over which one of them will get a bike. When Courtney sees Alejandro start the race, she runs over Heather's foot. During the eating challenge, Heather notices that Courtney has been helping Alejandro and quickly informs Chris about the cheating, causing Courtney to be forced to wear a dragon mask to not help him.
Courtney sides with Alejandro to win as opposed to Heather. In a deleted scene from the episode, Courtney called Heather a "hater" while talking about how she should have been in the finale.
Courtney glares at Heather after she secures a spot in the final two.
While climbing the volcano, Courtney assists Alejandro's side in throwing down the heavy obstacles to prevent Heather from crossing. When Heather wins in her ending, Courtney is the only person who doesn't cheer for her.
With the two of them being on the same team, Courtney and Heather once again fight over leadership of the team as well as whose turn it was to take part in the obstacle course. Additionally, Heather is disgusted when Scott attempts to flirt with Courtney. Meanwhile, Courtney still carries a grudge against Gwen and tells Heather to vote Gwen off if they lose that night and Heather complies. Like before, Heather has her fingers crossed, lying about helping her once more.
Courtney is disturbed by Heather's apparent personality change due to the effect of the Blue Harvest Moon, becoming a much nicer person, and makes fun of her with Gwen.
During the challenge, Heather catches up to Courtney and Scott to warn them about Alejandro's plan to eliminate Scott. Unbeknownst to them, she is lying in order to earn their votes against him. Courtney urges Heather to throw the last egg to her and Cameron in a last-ditch effort, which Heather does but their effort fails when the egg hits Cameron and then hatches, allowing the Hamsters to collect their last eggs and win the challenge. That night at the elimination ceremony, Courtney votes off Alejandro, and advises Gwen to do the same after them being instructed by Heather, a plan which fails when Alejandro has the immunity idol.
Despite their conflict, Courtney has sympathy for Heather along with the rest of her team and openly berates Alejandro for what he did to her in the previous episode. When Alejandro is pitted in a boxing match later, Courtney tells Gwen that she hopes it's Heather who he'll be forced to face, a battle both girls look forward to until they see it's actually Alejandro's older brother, José.
- Both are the main antagonists of a season.
- Both attempt to take the leadership role of their teams several times, despite being hated by the others.
- Both, along with Izzy and Noah, are some of the few contestants who were not planned to appear in Camp TV.
- Both have called Lindsay "Lindsiot".
- Both swear to sue Chris after their unfair eliminations in Total Drama Island, although Courtney is the only one who follows through with it.
- In an interview with Christian Potenza, Courtney's voice actress (Emilie-Claire Barlow) revealed that she originally auditioned to play Heather.
- Counting Alejandro's ending, both are part of a double elimination in Total Drama World Tour.
- Both have kissed more guys than any other girls on the show.
|Interactions with||Everyone | Alejandro | Beth | Bridgette | Chris | Duncan | Gwen | Harold | Heather | Lindsay | Scott|
|Other content||Courtney's alliances | Courtney's lawyers | Courtney's personal digital assistant|
|Interactions with||Everyone | Alejandro | Beth | Chris | Cody | Courtney | DJ | Duncan | Gwen | Harold | Leshawna | Lindsay | Owen | Sierra|
|Other content||Heather's alliances | Heather's hairstyles|