Tyrone Power (Lt. Ward Stewart)
Anne Baxter (Jean Hewlett)
Dana Andrews (Lt. Cmdr. Dewey Connors)
James Gleason (McDonnell)
Dame May Whitty (Grandmother)
Edward McWade (Crony)
Lionel Royce (German U-Boat Commander)
Cecil Weston (Woman)
Bruce Wong (Waiter)
Hans Moebus (German Officer)
Leila McIntyre (Senator's Wife)
Trudy Marshall (Telephone Operator)
Florence Lake (Doris)
Thurston Hall (Senator from Texas)
Charles Grapewin (Actor/Actress)
Frank Dawson (Henry the Butler)
Chester Gan (Lee Wong)
John Archer (Curly)
George Holmes (Crew Member)
Minor Watson ((Adm. Bob Stewart))
Kathleen Howard (Miss Bromley)
David Bacon (Lieutenant)
Stanley Andrews (Captain)
Paul E. Burns (Clerk)
Gene Rizzi (Seaman Rizzi)
Henry Morgan (Brownie)
Ben Carter (Oliver Cromwell Jones)
Charles Tannen (Hammond)
Frank Conroy (Capt. Bryson)