- J. Edward Bromberg
- Arnold DeBrock
- Osa Massen
- Valeria DeBrock
- William Wright
- Christopher Waring
- Margaret Tallichet
- Joan Millard
- Abner Biberman
- Carlos Castillo-Martinez
- Martin Kosleck
- Grebb, Henchman
- Charles D. Brown
- Capt. Jonathan Hunt
- Ivan Miller
- Capt. Brigham
- Roland Varno
- Ship's Doctor
- Sam Ash
- Policeman
- Edward Biby
- Ship's Passenger
- Roy Darmour
- Steward
- Robert Frazer
- Detective
- Dwight Frye
- Radio Operator
- Selmer Jackson
- Adm. Curtiss
- Carl M. Leviness
- Ship's Passenger
- John 'Skins' Miller
- Flop-House Night Clerk
- John Mylong
- Von Eltzen
- William Newell
- Second Steward
- Hugh Prosser
- Ship's Purser
- José Pérez
- Bellboy
- Tim Ryan
- First Mate
