Cartoon Network/Marvel

Cast: More ideas?
 * Robotboy as Spider-Man
 * Dexter as Iron Man (they're both geniuses with lots of technology)
 * Ben 10 as the Hulk
 * Numbuh 0 as Professor Xavier
 * Numbuh 1 as Cyclops
 * Numbuh 2 as Beast
 * Numbuh 3 as Storm
 * Numbuh 4 as Wolverine
 * Numbuh 5 as Rogue
 * The Kid as Deadpool
 * Samurai Jack as Thor (they're both from different worlds)
 * Finn the Human as Captain America
 * Lola Bunny as Black Widow
 * Bugs Bunny as Hawkeye
 * Daffy Duck as Ant-Man
 * Tina Russo Duck as The Wasp/Giant-Girl
 * Foghorm Leghorn as Nick Fury
 * Grim as the Punisher
 * Johnny Test as Daredevil
 * Johnny Bravo as Ghost Rider (Johnny Bravo & Johnny Blaze share the same first name and initials)
 * Optimus Prime as Mr. Fantastic
 * Sari Sumdac as the Invisible Woman
 * Bumblebee as the Human Torch
 * Bulkhead as the Thing
 * I.M. Weasel as Blade
 * Courage the Cowardly Dog as Howard the Duck