Dr. Robert Ordway
Irene Cotter / Natalie Cotter
Police Inspector Harry B. Manning
Henchman 'Rigger'
Ruby Farrell
Waldo (as Bernerd Nedell)
Police Sgt. Bradley
Gerald Cotter
Marcus Le Blaine
Alfredi
Miss White (uncredited)
William Castle
Director
Leigh Brackett
Screenplay
