Leslie CarlsonMr. Abernathy Kenneth WickesMr. Arnoldi Tabitha HerringtonMontgomery Paul RotheryDr. Maclarland Betty LindeMental Patient (uncredited) Judith BerlinMental Patient (uncredited) Alan RoseMorgue Attendant (uncredited) Thomas Hedley Jr.Screenplay Alexander MacDonaldProducer William T. MarshallProducer Henk Van der KolkProducer Trevor WilliamsProduction Design Richard WilcoxArt Direction Steve ShewchukSet Decoration John CoquillonDirector Of Photography William Ware TheissCostume Design Phyllis NewmanMakeup Artist Edward TernesMakeup Artist Paul HoffertOriginal Music Composer Wayne GriffinSound Editor Jack HeerenSound Engineer Peter ThillayeSound Editor 
