Supernatural's Eric Kripke (Creator/Executive Producer), Ben Edlund (Writer/Producer), Sera Gamble (Writer/Producer), Jim bever, beaver (Uncle Bobbers!), And Misha Collins (Gumby Man), all appearing on Sunday for Comic Con 2009
From Supernaturalwiki:Cosplay - dressing as characters in the toon - has been a minor but creative part of the fandom. Press on the red linken so u can see some hilarious pics of fans dressed up as SPN characters!!