User blog comment:VeryUnknownFan/Returnees in Total Drama/Ridonculous Race discussion/@comment-24952355-20151205235457/@comment-22535514-20151206013650

Pretty much. All of the others were mostly gimmicks, schticks, or just for one-off plot conveniences. Duncan and Courtney's returns are the most acceptable because the season changed because of it.

With Izzy, I liked it that she returned, because she was a likable person, but looking back at it, she did not do much whatsoever. I guess they were running out of comic relief by the merge, and she filled that void. If Beth returned in Island, the season would have been more interesting, and had more conflict. Izzy really didn't need to return in Action, but if they were stuck on this "Grops losing every challenge" gimmick, her return was needed in that sense.

If the return was in Episode 22, that would have been a lot better. It was the final non-elimination episode, and it would not have seemed like they were as shoened in as they were in the penultimate episode.