 Vincent PricePaul Toombes | Paul Toombes |
 Peter CushingHerbert Flay | Herbert Flay |
 Robert QuarryOliver Quayle | Oliver Quayle |
 Adrienne CorriFaye | Faye |
 Linda HaydenElizabeth Peters | Elizabeth Peters |
 Natasha PyneJulia Wilson | Julia Wilson |
 Michael ParkinsonTV Interviewer | TV Interviewer |
 Barry DennenGerry Blount | Gerry Blount |
| EEllis DaleAlfred Peters | Alfred Peters |
 Catherine WillmerLouise Peters | Louise Peters |
| JJenny Lee WrightCarol Clayton | Carol Clayton |
 Julie CrosthwaiteEllen | Ellen |
| IIan ThompsonBradshaw | Bradshaw |
 John GarrieInspector Harper | Inspector Harper |
 Peter HallidayPsychiatrist | Psychiatrist |
 Basil RathboneBasil (archive footage) | Basil (archive footage) |
 Boris Karloff(archive footage) | (archive footage) |
| HHyma BeckleyPassenger on Quayside (uncredited) | Passenger on Quayside (uncredited) |
| GGeorge BlacklerGeorge the Make-Up Artist (uncredited) | George the Make-Up Artist (uncredited) |
| RRobert CawdronCID Inspector (uncredited) | CID Inspector (uncredited) |
 Michael CrazeReporter (uncredited) | Reporter (uncredited) |
 David JacksonPolice Sergeant (uncredited) | Police Sergeant (uncredited) |
 Patrick JordanShip's Steward (uncredited) | Ship's Steward (uncredited) |
| EEarl RhodesBoy Fishing (uncredited) | Boy Fishing (uncredited) |
| PPam RosePretty Blonde (uncredited) | Pretty Blonde (uncredited) |
 Christopher SandfordReporter (uncredited) | Reporter (uncredited) |
| RReg ThomasonHollywood Party Guest (uncredited) | Hollywood Party Guest (uncredited) |
