Henry Fonda. What more can I say, in "Mister Roberts" he proved the old saying that a good actor should be like a good cat burgler...you shouldn't notice him doing his job. By contrast, his good friend James Stewart was a tremendously good actor, but somehow, I could never let go of the idea that it was Jimmy Stewart on the screen, regardless of what he was doing. Tom Hanks would be my modern favorite, an actor who's not afraid to take chances or re-invent himself for a role (tho I sometimes worry about his health when he gains or looses substantial amounts of weight just for a part)...he's made some great movies, some not so great, but even the lesser movies he brings something to the table, & doesn't just phone it in...

__________________
Plug me into somethin'

If the theory does not conform to the facts, then the facts must be discarded.

No good deed ever goes unpunished

Never argue with an idiot. He'll drag you down to his level, & beat you with experience.