Cary Grant
as Geoff Carter
Rita Hayworth
as Judith 'Judy' MacPherson
Jean Arthur
as Bonnie Lee
Noah Beery Jr.
as Joe Souther
Pat Flaherty
as Mike, head mechanic
Sig Ruman
as John 'Dutchy' Van Reiter (as Sig Rumann)
Victor Kilian
as Sparks (radioman)
Richard Barthelmess
as Barthelmess
Thomas Mitchell
as Kid Dabb
John Carroll
as Gent Shelton
Allyn Joslyn
as Les Peters
Donald Barry
as Tex Gordon, lookout
Milisa Sierra
as Lily, Joe's girl
Lucio Villegas
as Dr. Lagorio
Forbes Murray
as Mr. Harkwright, mine operator (uncredited)
Cecilia Callejo
as Felice Torras, Geoff's lady friend (uncredited)
Pedro Regas
as Pancho