Cameron and Sierra

This article focuses on the interactions between Cameron and Sierra.

Overview
Cameron and Sierra become good friends when they are placed on the same team in Total Drama All-Stars. However, as the season progress, Cameron begin to feel uneasy as Sierra starts to think that Cameron is Cody, who she was obsessed with, and began to transfer her feelings for Cody to Cameron. Additionally, Sierra begin to call Cameron as  Cody and did the things she did to Cody back in Total Drama World Tour. Initially, Cameron hopes that Sierra will eventually lose her feelings for him and started to know that he isn't Cody but fails. Eventually, Cameron loses his patience and desperately tries to find a way to get away from Sierra, to the point he wanted to quit the season.

Evil Dread
Once their team won the challenge, Sierra picks up Cameron and celebrate their victory.

Saving Private Leechball
Cameron believes that he and Sierra have many similar interests such as being smart and intelligent contestants as well as knowing a lot about their fellow contestants. Throughout the episode, they constantly talk in unison while discussing strategies, which disgust Courtney. After a while, Sierra starts to see Cameron as Cody, the boy whom she's been obsessed with for a long time. Initially, she thinks she is just hallucinating but after a while, she started to call Cameron as Cody instead of his name. After Cameron manage to eliminate Duncan, Sierra congratulates him but she calls him Cody which cause him to be distracted and was eliminated by Gwen.

At elimination ceremony, they both believe that Jo will be eliminated unless Jo can make the others to vote for Heather instead. Sierra's insanity finally slip and she no longer believes Cameron exist, seeing him as Cody. She then offers him a foot rub, something that Sierra used to do to Cody. When Chris ask the Hamsters to select a member to be exile on Boney Island, Cameron immediately volunteers, saddening Sierra. In the confessional, Cameron states that he knows what Cody been through in season three and refuse to suffer like him. He hopes by spending the night away from her will help Sierra return to her senes.

Food Fright
Despite being away for the night, Sierra still sees Cameron as Cody. After Cameron pass the obstacle course, Sierra calls him as Cody, Cameron or a combination of both names.

Moon Madness
Early in the challenge, Sierra holds Cameron in her arms after he hits a tree due to his short sightedness. She then starts telling him that she will help him to be his "eyes, ears and as many nostrils" which begin to creep him out. While Sierra was being attacked by a bird under the influence of the Blue Harvest Moon, Mike, as the Malevolent One, lure him away from her under the guise of making sure the coast is clear for her and Zoey. After Cameron was seperated from Mike and was under attacked by a group of bunnies untill he was saved by Sierra. She then puts him in a basket that she weaved and carry him in it so they wouldn't get seperated.

After their team lost, Cameron, who finally loses his patience, decides to quit the season in order to be away from Sierra once and for all, much to Sierra's dismay. However, Chris then announce that no one will be eliminated that night, disappointing Cameron. Instead, Cameron will now be competing as a member of the Villainous Vultures. Despite now that they were now be comepeting against each other, Sierra was excited as Cameron will still be around.