Marvel has always lacked in animation compared to DC. But if they converted their 2010 hit, The Avengers, into animation it could be a huge hit. Here's who could voice who!
Iron Man: Nolan North
I chose Nolan North because he has proven he can really pull off charismatic characters very well like Nathan Drake.
Captain America: Troy Baker
Troy Baker can practically voice anyone he wants to, Captain America would prove no challenge whatsoever.
Black Widow: Jennifer Hale
After hearing what she could do in Mass Effect 3 i'm surprised we haven't seen this casting yet! She'd be terrific, she is very good with strong, kick ass female characters.
Bruce Banner/The Hulk: Arin Hanson
Arin Hanson is a popular animator and voice actor on YouTube and nearly voiced The Hulk in Marvel Ultimate Alliance but was ultimately replaced. He is very talented and could see this casting work very well.
Hawkeye: Jensen Ackles
I chose Jensen Ackles because of his voice performance as Jason Todd in Batman: Under The Red Hood. He was also in contention of the live action role of Hawkeye prior to Marvel casting Jeremy Renner.
Thor: Robin Atkin Downes
Robin Atkin Downes did a fantastic job of voicing Ack in How To Train Your Dragon. Robin has an impressive vocal range and could definitely pull off voicing Thor.
Loki: Mark Hamill
As long as Hamill brought a Joker-like menace to Loki it would be a fantastic casting choice.