Bill Rogers

John Stone

Elizabeth Wilkinson

Helene Stone

William Kerwin

Dr. Hank Tyson (as Thomas Wood)

Lawrence Tobin

Detective Crane

Ted Schell

Lord Gold

Otto Schelssinger

Dr. Howard Helsing

Eleanor Vaill

Hester Avery

Herschell Gordon Lewis

The Limey Seaman / Baron Khron (voice) (as Seymour Sheldon)

Dolores Carlos

Sherri Morris