طاقم التمثيل
Joseph Depew
Naval Reservist (uncredited)
جورج أوبريان
Cmdr. Robert 'Bob' Kingsley
Francis Ford
Eric - Captain of Trawler (uncredited)
Maurice Murphy
Merkel (uncredited)
Harry Strang
Gunner and drill sergeant (uncredited)
Larry Kent
Lt. 'Mac' McGregor
Warren Hymer
'Lug' Kaufman
George Harris
Naval Reservist/Swimmer and Diver (uncredited)
Edward Peil Jr.
Naval Reservist (uncredited)
Marion Lessing
Anna Marie Von Steuben
Steve Pendleton
Ens. Richard 'Dick' Cabot (as Gaylord Pendleton)
John Loder
Franz Shiller
Jack Murphy
Naval Reservist (uncredited)
Ferdinand Schumann-Heink
Adolph Brucker (uncredited)
Walter McGrail
Chief Joe Cobb
Henry Victor
Baron Ernst von Steuben (U-boat commander)
William Collier Sr.
Mugs O'Flaherty (uncredited)
Hans Fuerberg
Fritz Kampf (Second Officer of U-172) (uncredited)
Nat Pendleton
'Butch' Wagner (uncredited)
Walter C. Kelly
Chief Mike 'Guns' Costello
Harry Tenbrook
Winkler (uncredited)
Mona Maris
Fraulein Lolita