Marilyn Monroe as Roslyn Taber

Clark Gable as Gay Langland

Eli Wallach as Guido

Montgomery Clift as Perce Howland

Thelma Ritter as Isabelle Steers

James Barton as Fletcher's grandfather

Kevin McCarthy as Raymond Taber

Estelle Winwood as Church lady collecting money in bar

Rex Bell as Old Cowboy (uncredited)

John Huston as Extra in Blackjack Scene (uncredited)

Peggy Barton as Young Bride (uncredited)

Ryall Bowker as Man in Bar (uncredited)

Frank Fanelli Sr. as Gambler at Bar (uncredited)

Bobby LaSalle as Bartender (uncredited)

Philip Mitchell as Charles Steers (uncredited)

Walter Ramage as Old Groom (uncredited)

Ralph Roberts as Ambulance Driver at Rodeo (uncredited)

Dennis Shaw as Fletcher - Young Boy in Bar (uncredited)

J. Lewis Smith as Fresh Cowboy in Bar (uncredited)

Marietta Tree as Susan (uncredited)