14 contestants, all memorable for their rivalries, eliminations, and relationships with other players, are chosen to be brought back to compete.
Alejandro - Known for dominating Total Drama World Tour and having a love/hate relationship with Heather.
Dawn - Known for her heated rivalry with Scott and freaking other contestants out before being framed and voted off.
Harold - Known for dominating Total Drama Action as a hero and fighting against the odds, as well as cheating Courtney out.
Leonard - Known for his "magic," which annoyed other contestants and got him eliminated.
Mike - Known for his relationship with Zoey and is one of the most hated contestants ever.
Gwen - Known for having a rivalry with several other contestants and having many relationships with other guys, as well as dumping them on national television.
Heather - Known for being the first villain and being hated by the cast while loved by fans.
Topher - Known for having a supposed secret crush on Samey/Amy and being obsessed with Chris.
Lightning - Known for being rude on the outside and nice on the inside, along with his rivalry with Jo.
Cody - Known for "being carried" by Sierra in Total Drama World Tour.
Scarlett - Known for trying to kill the remaining contestants on Pahkitew Island.
Sadie - Known for being extremely underrated and was never given a second chance.
Beth - Known for beating the odds on Total Drama Action aswell as having a "backbone" when she stands up for herself to people she thinks are rude, mean, and bossy.
Katie - Known for dominating in the dodgebrawl challenge, but failed to make it far due to being annoying to other castmates, she along with Sadie never got another second chance.
- This contestant was a member of the maskawâtisiw apisimôsos.
- This contestant was a member of the sohkâpiskisow pîyesîs.
- The name of the season in English is called Total Drama: The Waterfall Islands.
- The team name sohkâpiskisow pîyesîs poorly translates in English to The Hardy Birds.
- The team name maskawâtisiw apisimôsos poorly translates in English to The Mighty Deer.