Lists by morgalla
These actors enhance any movie they appear in. If they are in the cast i am confident that at least the parts they act in wont suck.
Consistently amuse me even when acting in non comedy or voice only roles. Many are not comedians by trade.
Seeing or hearing one of these people onscreen makes me leap for the remote. If one of them was in a movie I would not see it unless the cast was compensated by at least two actors of quality.
Some are title characters, and some are just very memorable bit parts. About evenly split between heroes and villains. Many are complicated, most are badass. If more than one actor has played the role I will mention which is my favorite. In no particular order.