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