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