Loki
Tom Hiddleston brings his acting chops and his forehead (in a separate suitcase? How does he fit that thing through the doorway?) to his role as Loki in The Avengers and Thor movies.
Loki is an odd villian. I’ve never been sure what his powers are, exactly. He can shapeshift, right? Shouldn’t he be doing that, like, all the time? And then, what, make zombies with a staff he stole? And just be generally clever and devious? I don’t know, even Dwight Yoakum in Sling Blade just seems like a scarier character than this guy, and his only superpower is alcoholism and anger.