User blog comment:Gogogadget831/Every Episode of Total Drama Reviewed: Episode 26 - The Very Last Episode, Really!/@comment-25027229-20150704171006/@comment-1427230-20150704214036

There were lots of episodes early on that didn't have the characters talk. With the exception of Not So Happy Campers Part One, there was always at least one lineless character per episode until Who Can You Trust? It's just to difficult to give 22 (24 if you count Chris and Chef) characters lines in a 22 minute episode. That's probably why they scaled back on the contestants in the later seasons and why not every contestant returned in the AS and PI finale. But I will agree on Owen.