So I made this PowerPoint documentary for these non-villainous characters fan casting as the Avatar villains, but we all know what they have in common, they all share the same voice actor. And I'll tell you who they are.
Skips from Regular Show as Ozai (both voiced by Mark Hamill)
Jake Long from American Dragon: Jake Long as Zuko (both voiced by Dante Basco)
Daphne Blake from Scooby Doo as Azula (both voiced by Grey DeLisle)
Spike Spiegel from Cowboy Bebop as Amon (both voiced by Steve Blum)
King Frederic from Tangled as Long Feng (both voiced by Clancy Brown)
Siddeley from Cars 2 as Zhao (both voiced by Jason Isaacs)
Hellboy as Sozin (both voiced by Ron Perlman)