Arnold DeBrock
Valeria DeBrock
Christopher Waring
Joan Millard
Carlos Castillo-Martinez
Grebb, Henchman
Capt. Jonathan Hunt
Capt. Brigham
Ship's Doctor
Policeman
Ship's Passenger
Steward
Detective
Radio Operator
Adm. Curtiss
Ship's Passenger
Flop-House Night Clerk
Von Eltzen
Second Steward
Ship's Purser
First Mate