10 Biggest Casting Mistakes In MCU History

10. Edward Norton (The Incredible Hulk)

Edward Norton isn't known for being the easiest actor in Hollywood to work with. His talent is undeniable but if your plan is to forge a fledgling cinematic universe, you may want a bit more of a team player to be the face of one of your most iconic characters.

The stories of Norton's on-set behaviour in The Incredible Hulk production have become infamous at this point - with him fundamentally disagreeing with the studio's vision of the character/script/film as a whole.

Norton was replaced in the role for the eventual Avengers team up and that definitely attracted the kind of media attention that Marvel wanted to avoid. The former Big Green Guy's agent even went as far as to stress that Norton had been offered the chance to reprise the role, only for Marvel to back out and offer Mark Ruffalo the part due to suspected financial restraints and a more harmonious set.

It all looked ugly and could've been avoided if the casting process had taken 'playing well with others' into account.