Spencer Tracy as Pilon

Hedy Lamarr as Dolores Ramirez

John Garfield as Daniel Alvarez

Frank Morgan as The Pirate

Akim Tamiroff as Pablo

Sheldon Leonard as Tito Ralph

John Qualen as Jose Maria Corcoran

Donald Meek as Paul D. Cummings

Connie Gilchrist as Mrs. Torrelli

Allen Jenkins as Portagee Joe

Henry O'Neill as Father Ramon

Mercedes Ruffino as Mrs. Marellis

Nina Campana as Señora Teresina

Arthur Space as Mr. Brown

Betty Wells as Cesca

Harry Burns as Torrelli

Jack Carr as Herman Scrivani (uncredited)

Barbara Bedford as Nun

Yvette Duguay as Little Girl

Willie Fung as Chin Kee, Fisherman

Louis Jean Heydt as Young Doctor

Charles Judels as Joe Machado

George Magrill as Cannery Worker

Tito Renaldo as Young Man with Infant

Walter Sande as Cannery Foreman

Harry Strang as Fireman

Emmett Vogan as Doctor Treating Danny

Shirley Warde as Nurse

Larry Wheat as Churchgoer

Roque Ybarra as Alfredo Teresina