Kent Taylor

Jack Clark

Dona Drake

Elena Valdez

Tala Birell

Sonia Bardos

Leonard Strong

Bandit Chieftain

Konstantin Shayne

Professor Jan Schuyler

Robert Barrat

Hendrick Van Boyden (as Robert H. Barrat)

Rex Evans

Lance Warburton

Rudolph Anders

Rudolph Busch

Otto Reichow

Nils Otter

Franco Corsaro

Alfredo Charles