Humphrey Bogart as Harry Dawes

Ava Gardner as Maria Vargas

Edmond O'Brien as Oscar Muldoon

Marius Goring as Alberto Bravano

Valentina Cortese as Eleanora Torlato-Favrini

Rossano Brazzi as Count Vincenzo Torlato-Favrini

Elizabeth Sellars as Jerry

Warren Stevens as Kirk Edwards

Franco Interlenghi as Pedro Vargas

Mari Aldon as Myrna

Enzo Staiola as Busboy

Bill Fraser as J. Montague Brown

Alberto Rabagliati as Proprietor

Maria Zanoli as Maria's Mother

Renato Chiantoni as Maria's Father

John Parrish as Mr. Max Black

Jim Gérald as Mr. Blue

Diana Decker as Drunken Blonde

Riccardo Rioli as Gypsy Dancer

Tonio Selwart as Pretender

Margaret Anderson as Pretender's Wife

Gertrude Flynn as Lulu McGee

Bessie Love as Mrs. Eubanks

John Horne as Hector Eubanks

Ugo Mari as Cigar Smoker in the Night Club (uncredited)