User blog comment:FameFlame/IDK if anyone cares/@comment-20037936-20130813212028

The cast has already been leaked, via  Cartoon Network's database, websites, scripts, and the cast's voice actors.

It's Alejandro (the super secret contestant lol), Cameron, Courtney, Duncan, Gwen, Heather, Jo, Lightning, Mike, Sam, Scott, Sierra, Zoey and Lindsay.