Best Supporting Actor: 1940s

1940: Frank Morgan, The Shop Around the Corner

Oscar winner: Walter Brennan, The Westerner
Was he nominated?: No

1941: Sydney Greenstreet, The Maltese Falcon

Oscar winner: Donald Crisp, How Green Was My Valley
Was he nominated?: Yes

1942: Joseph Cotten, The Magnificent Ambersons

Oscar winner: Van Heflin, Johnny Eager
Was he nominated?: No

1943: Charles Coburn, The More the Merrier

Oscar winner: Charles Coburn, The More the Merrier

1944: Edward G. Robinson, Double Indemnity

Oscar winner: Barry Fitzgerald, Going My Way
Was he nominated?: No

1945: James Dunn, A Tree Grows in Brooklyn

Oscar winner: James Dunn, A Tree Grows in Brooklyn

1946: Claude Rains, Notorious

Oscar winner: Harold Russell, The Best Years of Our Lives
Was he nominated?: Yes

1947: Robert Ryan, Crossfire

Oscar winner: Edmund Gwenn, Miracle on 34th Street
Was he nominated?: Yes

1948: Walter Huston, The Treasure of the Sierra Madre

Oscar winner: Walter Huston, The Treasure of the Sierra Madre

1949: Orson Welles, The Third Man

Oscar winner: Dean Jagger, Twelve O'Clock High

Was he nominated?: No