5. Monty Woolley in Since You Went Away- Woolley although limited by his screentime does gives a nice humorous performance as a stuffy man who becomes less stuffy.
4. Hume Cronyn in The Seventh Cross- Hume Cronyn has a fairly simple role as an average man trying to help his friend, but he makes the most of it. He gives a convincing performance effectively finding the quiet decency of his character.
3. Claude Rains in Mr. Skeffington- Although Rains has to contest with a wildly overacting co-star he does far more than hold his own as he creates a genuinely moving portrait as the titular character.
2. Clifton Webb in Laura- Webb is almost perfect throughout having the perfect superior demeanor throughout the film. He creates a memorable character and even though his final scene could have been even better this is still a strong performance.
1. Barry Fitzgerald in Going My Way- After almost winning the lead category for this year I find it very easy to give Fitzgerald his deserved win for the category he belongs. He gives a simply wonderful supporting performance that is a humorous warm performance that could not be better.
Edward G. Robinson in Double Indemnity
William Bendix in Lifeboat
Peter Lorre in Arsenic and Old Lace