Vincent PricePaul Toombes

Peter CushingHerbert Flay

Robert QuarryOliver Quayle

Adrienne CorriFaye

Linda HaydenElizabeth Peters

Natasha PyneJulia Wilson

Michael ParkinsonT.V. Interviewer

Barry DennenGerry Blount

Ellis DaleAlfred Peters

Catherine WillmerLouise Peters

Jenny Lee WrightCarol Clayton

Julie CrosthwaiteEllen

John GarrieInspector Harper

Ian ThompsonBradshaw

Peter HallidayPsychiatrist

Basil RathboneBasil (archive footage)

Boris Karloff(archive footage)

Hyma Beckley

George Blackler

Robert Cawdron

Michael Craze

David Jackson

Patrick Jordan

Earl Rhodes

Pam Rose

Christopher Sandford

Reg Thomason

Jim ClarkDirector

Ken LevisonScreenplay

Greg MorrisonScreenplay

Samuel Z. ArkoffExecutive Producer

Max RosenbergProducer

Milton SubotskyProducer