The Nicktoonvengers (2012)

Cast

Spongebob Squarepants as Steve Rogers/Captain America

Jimmy Neutron as Thor

Timmy Turner as Tony Starks/Iron Man

B. O. B from (Monsters vs Aliens) as Bruce Banners

Wreck-it Ralph from (Wreck-it Ralph) as Hulk

XJ-4 from (My Life as a Teenage Robot) as Natasha Romanoff/Black Widow

Toaster from (Brave Little Toaster) as Hawkeye

Plankton from (Spongebob Squarepants) as Loki

Monster House from (Monster House) as The Giant Monster that Hulk battle

Quotes
Spongebob/Captain America: Um, Dr. Banner, i think it's a good time for you to be angry.