I’d like to see Chris Hemsworth in a few straight-up comedy roles; he’s shown flashes in it as Thor, and he was hilarious in Ghostbusters.
Well-meaning, a bit slow, usually has his foot in his mouth - he nails that sort of role.
Robin Williams could play in any genre. He was comedy, serous, and very dramatic all roles in one. One of his last roles was on Law & Order SVU, where he played a good guy doing illegal things.
Will Smith needs to change back, from trying to win an Oscar to doing action comedies, which is what he’s actually good at.
He was funny in the Vacation remake - by far the funniest part of the movie. 