Superman-Brandon Routh(Superman Returns, Chuck, Scott Pilgrim vs. The World)
Do I really need to explain this one?
Lois Lane-Zooey Deschanel(Bridge to Terebithia, 500 Days of Summer, Surf's Up)
She's a great actress and really looks like Lois, especially like Margot Kidder's version.
Jimmy Olsen-Chris Marquette(ER, Freddie vs. Jason, Race to Witch Mountain)
He's a pretty good actor and he looks the part. He even reminds me of Sam Huntington(who played Jimmy in Superman Returns).
Lex Luthor-James Marsters(Smallville, Superman:Doomsday, Spider-Man I I/2)
A great actor with the looks, voice and experience to play Lex. Sorry, not my best manip.
Other Heroes:
Steel-Henry Simmons(CSI:Miami, Are We There Yet, Saturday Night Live)
The obvious fan favorite.
Superboy-Robbie Amell(Scooby-Doo:The Mystery Begins, True Jackson,VP, Unnatural History)
He looks the part, can act and I haven't seen a better pick yet.
That's all for now, more coming later.