Irene

Irene is DJ's pet fish that he kept during Newf Kids on the Rock and Jamaica Me Sweat. Irene was given to DJ when he was instructed to kiss the cod in the final challenge in Newf Kids on the Rock. He refused to do it at first because he wanted to be eliminated, in order to prevent himself from hurting more animals from his curse and because he believed he would bring harm to it if he made contact, also due to his curse. Heather points out an Egyptian symbol that was on the fish, telling DJ that the fish might be able to end the curse. DJ refuses, but finally does it when Alejandro agrees with Heather and says DJ should do it for the good animals of the world. DJ kisses Irene, and ties with Team Chris Is Really Really Really Really Hot in the challenge this episode. It is then revealed that he goes two hours without hurting an animal and that convinces him that the curse is broken, and that Irene is his lucky charm and as long he has her, his curse is rendered null and void. At the end of the episode, it is revealed that Alejandro had painted the Egyptian symbol on Irene in order to gain DJ's trust.

Total Drama World Tour
In Jamaica Me Sweat, DJ keeps Irene, seeing the fish as a good luck charm. He takes it everywhere he goes, even the confessional and the challenges. In the first challenge, DJ accidentally knocks Irene off the cliff, but jumps and saves her before she lands on the ground. Because DJ is too preoccupied with Irene's safety, he fails to gain the advantage in the second challenge. During this second challenge, DJ goes through the bobsled course with Irene and finishes with the two fastest times out of everyone. Alejandro, later, tells Tyler before the the third and final run that he painted the Egyptian symbol on the fish, intending DJ to hear it. Upon hearing this, DJ loses his confidence and believes that he's cursed once again. Due to this, DJ loses focus during the challenge, leading up to his elimination from the competition.

Trivia

 * Irene is DJ's third pet, after DJ's Bunnies in Total Drama Island.
 * Irene is DJ's only pet to not be a bunny.
 * She is also DJ's only pet to be a part of a challenge.
 * Irene is the fourth animal to be named in the season after Ruby, Ting-Ting, and T'sing-T'sing.
 * Irene is DJ's only pet in Total Drama World Tour.
 * A codfish similar to Irene is seen in Planes, Trains, and Hot Air Mobiles.