Heimdall (Idris Elba, Thor)
Heimdall is the Asgardian early warning system. He’s the guard in essence, yet some folks found it absurd that the role on the big screen would be played by a black actor. Bizarrely, Elba found his casting a center of controversy for a franchise that once had Thor looking like this:
Elba discussed the insanity with Entertainment Weekly.
Elba had less grief when playing Roque in The Losers, mainly because not a lot of folks bothered to see it.