Pat O'Brien (Sam Doyle)
Glenn Ford (Danny Doyle)
Evelyn Keyes (Susie Thompson)
Jonathan Hale (Sanford)
Minor Watson (Major Thompson)
Ralph Simone (Bartender)
George Neise (Radio Operator)
Ferdinand Munier (Photographer)
Crauford Kent (Company Official)
Gregory Gaye (Becker)
Robert W. Frazer (Captain Hall)
William Forrest (Captain)
Trevor Bardette (Carey)
Marcel Dalio (Faulet)
John Gallaudet (Jackson)
Larry Parks (Sandy Roth)
Lloyd Bridges (Bill Robinson)
Hugh Beaumont (John McGinnis)
Douglas Croft (Danny Doyle, as a Boy)
Frank Puglia (Father Carlos)
Edward Pawley (Larsen)
Clancy Cooper (Scanlon)