Well it's not all set in stone but I'll give a general overview.
- Batman (DC)
- Superman (DC)
- Green Latern (DC) haven't decided which one.
- Batman Rogues (DC)
- Teenage Mutant Ninja Turtles (TV)
- Hulk (Marvel)
- Elektra (Marvel)
- Wolverine (Marvel)
- Ghost Rider (Marvel)
- The Punisher (Marvel)
- Fantastic Four (Marvel)
- Blade (Movie Marvel)
- Ultimates (Ultimate Marvel)
- Predator (Movies)
- Edward Elric (Fullmetal Alchemist)
- Al Elric (Fullmetal Alchemist)
- Mugen (Samuri Clampoo)
- Jean (Samuri Clampoo)
- Inuyasha (Inuyasha)
- Vash (Trigun)
- Faye, Spike, Jet, and Ed (Cowboy Bebop)
- Riddick (Chronicles Of Riddick)
- Obi-Wan (Star Wars)
- Spawn (Image)
- Solid Snake (Metal Gear Solid)
- Selene (Underworld)
- Dante (Devil May Cry)