His Girl Friday (1940)

Howard Hawks
The Big Sleep, Bringing Up Baby, Rio Bravo

Ben Hecht - play
Notorious, Kiss of Death, Scarface

Charles MacArthur - play
Wuthering Heights, The Front Page, Switching Channels

Cary Grant
North by Northwest, Notorious, Arsenic and Old Lace

Rosalind Russell
Auntie Mame, The Women, Picnic

Ralph Bellamy - Bruce Baldwin (Hildy's fiancee)
Pretty Woman, Rosemary's Baby, Trading Places

Gene Lockhart
Miracle on 34th Street, Meet John Doe, Going My Way

Porter Hall - Murphy (reporter)
Mr. Smith Goes to Washington, Double Indemnity, Miracle on 34th Street

Ernest Truex
Bachelor Mother, It's a Wonderful World, Christmas in July

Cliff Edwards - Endicott (reporter)
Pinocchio, Dumbo, Fun and Fancy Free

Clarence Kolb - Fred (mayor of Chicago)
Adam's Rib, Man of a Thousand Faces, Hellzapoppin

Roscoe Karns - McCue (reporter)
It Happened One Night, Woman of the Year, Wings

Frank Jenks - Wilson (reporter)
The Amazing Colossal Man, Christmas in Connecticut, The She-Creature

Regis Toomey - Sanders (reporter)
The Big Sleep, Spellbound, The Bishop's Wife

Abner Biberman - Louis (small-time hood)
Gunga Din, Winchester '73, Viva Zapata!

Frank Orth
The Lost Weekend, Father of the Bride, The Big Clock

Helen Mack
The Son of Kong, The Milky Way, She

John Qualen
Casablanca, The Searchers, The Grapes of Wrath

Alma Kruger - Mrs. Baldwin (Bruce's mother)
Saboteur, Made for Each Other, These Three

Billy Gilbert
Snow White and the Seven Dwarfs, The Great Dictator, Destry Rides Again

Pat West - Warden Cooley
The Bank Dick, Only Angels Have Wings, Saratoga

Edwin Maxwell - Dr. Egelhoffer (psychiatrist)
Duck Soup, The Shop Around the Corner, Ninotchka

Irving Bacon - Gus (waiter) (uncredited)
Shadow of a Doubt, It Happened One Night, Spellbound

Howard Hawks
Corvette K-225, The Big Sleep, Bringing Up Baby