- Wallace Beery
- John Thorson
- Chester Morris
- 'Rocky' Blake
- Virginia Grey
- Susan Thorson
- Douglass Dumbrille
- District Commander
- Carl Esmond
- U-Boat Captain
- Clem Bevans
- 'Cap' Finch
- John Qualen
- Milo
- Regis Toomey
- Ives
- Henry Victor
- German U-Boat Officer
- Addison Richards
- Adm. Ross
- Hans Joby
- U-Boat Petty Officer
- Henry Hunter
- Ens. Dyer
- Jonathan Hale
- Adm. Girard
- Leon Ames
- Recruiting Officer
- Arthur Belasco
- Fisherman
- Joseph E. Bernard
- Fisherman
- Wade Boteler
- Recruiting Officer
- Al Bridge
- Fisherman
- Rand Brooks
- Listener
- Don Castle
- Radio Operator
- Jack Chapin
- Sailor
- Tom Chatterton
- Lieutenant
- Jack Rube Clifford
- Captain
- Harry Cording
- Sailor
- Jules Cowles
- Man with Finch
- Leigh De Lacey
- Mrs. Gill
- Joe De Stefani
- Fisherman
- Edgar Dearing
- Petty Officer
- John Doucette
- Sailor on rope
- Richard Elmore
- Lookout
- Frank Faylen
- Petty Officer
- Budd Fine
- Survivor
- Allen Fox
- Lookout
- Lee Frederick
- Sailor
- Eddie Hart
- Fisherman
- Edward Hearn
- Fisherman
- Howard Hickman
- Surgeon
- Earle Hodgins
- Fisherman
- Clarke Jennings
- Wireless Operator
- Payne B. Johnson
- Boy
- Charles Jordan
- Signalman
- Lew Kelly
- Sailor
- Jack Kennedy
- Fisherman
- Milton Kibbee
- Fisherman
- Claire McDowell
- Nurse
- Larry McGrath
- Radio Operator
- Roger Moore
- Orderly
- Philip Morris
- Fisherman
- Forbes Murray
- Naval Aide
- Frank Orth
- Old Sailor in Bilge Area
- Henry Rowland
- German Officer
- Syd Saylor
- Wireless Operator Sending Coded Message
- Harold Schlickenmayer
- Engineer
- Ferdinand Schumann-Heink
- German Operator
- Hans Schumm
- German Sailor Looking for Wireless
- Harry Semels
- Cook on Tugboat
- Lee Shumway
- Sailor
- Robert R. Stephenson
- German Sailor
- Harry Strang
- Shore Patrol Sailor
- Walter Thiele
- Young German Sailor
- Emmett Vogan
- Junior Officer Standing by Map
- Hans von Morhart
- German Sailor
- Doodles Weaver
- Sailor Getting Cigar
