5. Humphrey Bogart in The Caine Mutiny- Bogart's role is close to being supporting, and much of his performance is more suitable than all that good. I would say he has some strong scenes, but overall he really is not given enough focus.
4. Dan O'Herlihy in Robinson Crusoe- O'Herlihy- is very good at his often one man show performance. He remains interesting even through the minimal tasks of survival, and shows the growth of the character very well.
3. Bing Crosby in The Country Girl- Crosby is incredibly strong in his performance as the beaten down has been actor. He shows a very powerful emotional strength, and creates an interesting portrait of a man broken down by his guilt, and his feeble attempts to not face up to the facts.
2. James Mason in A Star in Born- James Mason gives a very charming performance as Norman Maine, and he works perfectly along with Judy Garland. He makes Normain Maine a likable and memorable character, which makes his fall all the more heartbreaking.
1. Marlon Brando in On the Waterfront- Although I thought Mason was truly terrific, I never had a question who the best of this year was. Brando simply stands alone with his tremendous performance which is simply an extraordinary performance. A perfect performance that is completely honest, charming, and simply one of the most effective screen performances I have ever seen. (Good prediction Dinasztie)
James Stewart in Rear Window
Ray Milland in Dial M for Murder
Toshiro Mifune in Seven Samurai