Patrick Wayne as Vic Mathias

John Ashley as Logan

Leigh Christian as Syrene

Sid Haig as East Eddie

Lenore Stevens as Dr. Katherine Vernon

George Nader as Nereus

Vic Diaz as Manuel the Barracuda

Eddie Garcia as The Mate

Andres Centenera as

Kim Ramos as

Gil Arceo as

Kenneth J. Warren as

Angelo Ventura as