Cary Grant in anything, James Stewart (same), Laurence Olivier (same), Paul Newman (same), Gregory Peck (same), Anthony Hopkins(Silence of the Lambs and Remains of the Day), Dustin Hoffman (Tootsie,Rain Man,Marathon Man)
I really can't imagine anyone else in that movie other than Audrey Hepburn. It's definitely one of my faves.
I also really liked Angelina Jolie in "Girl Interrupted." I really think that she stole the show from Winona. I love the very end where she tried to push Winona over the edge. I liked the dynamics between the characters.
There are SO many that I could list, but at the moment, SEAN PENN comes to mind in "Mystic River" and "I Am Sam".
He is such a great actor.
Also, someone mentioned Tom Cruise in "Born On The Fourth Of July"....... excellent!
Of course, AL PACINO (in any movie) and ROBERT DENIRO (he is such a versetile actor..... he can do comedy, serious roles, everything).