Tyrone Power
Lt. Ward Stewart
Anne Baxter
Jean Hewlett
Dana Andrews
Lt. Cdr. Dewey Connors
James Gleason
Chief Mike 'Mac' McDonnell
May Whitty
Grandmother
Harry Morgan
Brownie
Ben Carter
Oliver Cromwell Jones
Stanley Andrews
Shipwrecked Captain (uncredited)
John Archer
Curly Bowman (uncredited)
Gene Rizzi
Seaman Rizzi (uncredited)
Frederic Brunn
Q Boat Lieutenant (uncredited)
Frank Conroy
Capt. Bryson
Fred Aldrich
German Seaman
David Bacon
Lieutenant
Brooks Benedict
Angry Man at Hotel Registration Desk
Lulu Mae Bohrman
Undetermined Secondary Role
Dorothy Brent
Schoolgirl
Paul E. Burns
Simmons - Desk Clerk
Harry Carter
Sailor
Gene Collins
Boy in Lifeboat
James Conaty
Hotel Desk Clerk
Frank Dawson
Henry the Butler
James Eagles
Officer
Edward Earle
Wreckage Victim
Chester Gan
Lee Wong
Charley Grapewin
Pop
Thurston Hall
Senator from Texas
Sally Harper
Teenage Student
George Holmes
Crew Member
Kathleen Howard
Miss Bromley
Sue Jolley
Schoolgirl
Florence Lake
Doris - Jean's Roommate
Peter Leeds
Shore Police
Trudy Marshall
Telephone Operator
Leila McIntyre
Senator's Wife
Betty McKinney
Schoolgirl
Malcolm 'Bud' McTaggart
Sailor
Edward McWade
Crony
James Metcalf
Undetermined Secondary Role
Hans Moebus
German Officer
Edmund Mortimer
Man at Hotel Registration Desk
John Mylong
Captain of Submarine
Netta Packer
Mother
Tom Quinn
Hotel Guest
Otto Reichow
German Signalman
Lionel Royce
German Q-Boat Commander
Floyd Shackelford
Porter
Paul Stanton
Officer
Charles Tannen
Seaman Hammond
Ruth Thomas
Schoolgirl
Sigfrid Tor
German Soldier
Nicholas Vehr
Russian Officer
Hans von Morhart
Y Gun Operator
Minor Watson
Adm. Bob Stewart
Cecil Weston
Woman
Bruce Wong
First Waiter
William Yetter Sr.
Tanker Lieutenant