Lyle TalbotLt. Bob Bennett Irving PichelDr. Herbert Stander Sheila BromleyPoison Mary Slavish Anthony AverillDirk - Stander's Aide Russell HoptonHarry 'The Carver' Bogard Julian MadisonPaul - Stander's Aide Wheeler OakmanJohn Ritter Stanley BlystoneCapt. Mike Briggs Leander De CordovaEzra Matthews Demetrius AlexisSteve Murano Skelton KnaggsJesse Bixel Adia KuznetzoffAdolph Krantz George Wallace SayreWriter Jack GreenhalghDirector Of Photography David ChudnowMusic Director Hans WeerenSound Engineer 
