* Marlon Brando as Val Xavier
* Anna Magnani as Griselda
* Joanne Woodward as Carol Cutrere
* Victor Jory as Reverend Shane
* Maureen Stapleton as Ellie
* Steve McQueen as Polack
* Anthony Quinn as Manny
* Florence Stanley as Aunt Sissy
* Patricia Dane as Eva
* Donald Murphy as Cigarette
* John Derek as Rex
* R.G. Armstrong as Cowboy
* Milt Kamen as Judge
* Ray Teal as Sheriff
* Jack Mullaney as Deputy
* Gene Roth as Cashier
* Thelma Ritter as Woman
* Larry Gates as Doctor
* Parley Baer as Man
* John Dierkes as Newsreel
* Nick Dennis as Man
* Harold J. Stone as Man
* Robert Foulk as Man
* John Mitchum as Man
* Dick Miller as Man
* John Qualen as Man
While Steve McQueen and Anthony Quinn had small roles, their presence in the film contributed to its overall star power and success.