Ray Milland (Jonathan Trumbo)
Barbara Stanwyck (Lily Bishop)
Barry Fitzgerald (Michael Fabian)
George Coulouris (Pharaoh Coffin)
Albert Dekker (Mr. Pike)
Will Wright (Chairman)
Philip Van Zandt (Mr. Gunce)
Minerva Urecal (Emma)
Phil Tead (Eddie, the Cashier)
Kathrun Sheldon (Gaunt Wagon Woman)
Fred Santley
Joey Ray (Pennock's partner)
Lee Phelps
Frances Morris (Elwyn's mother)
Dick Wessel (Blacksmith)
Joe Whitehead
Crane Whitley (Abe Clinton)
Russ Clark (Man)
Pepito Pérez
George Barton
Phil Dunham
Anthony Quinn (Don Luis)
George Melford (Delegate)
Francis Ford
Ian Wolfe (James K. Polk)
Louis Mason
George Magrill
Rex Lease
Virginia Farmer (Second Town Matron)
Tom Fadden
Ralph Dunn (Man)
Jeff Corey (Man)
Eduardo Ciannelli (Padre)
Tom Chatterton
Lane Chandler (Man)
Argentina Brunetti (Elvira)
Don Beddoe (Stark)
Jack Baxley (Cowhand)
Stanley Andrews (Willoughby)
Harry Hayden (Barrett)
Gertrude W. Hoffman (Old Woman)
Ethan Laidlaw (Reb)
Frank S. Hagney
Jesse Graves
Joe Gilbert
Sam Flint (Higgins)
Frank Ferguson
Si Jenks
Roman Bohnen (Col. Stuart)
Howard Freeman (Sen. Creel)
Julia Faye (Wagon Woman)
Frank Faylen (Whitey)
Gavin Muir (Booth Pennock)
James Burke (Pokey)