Cast
| Name | Character | Team | |
|---|---|---|---|
 |
Vincent Price | Paul Toombes | Unowned |
 |
Peter Cushing | Herbert Flay | Unowned |
 |
Robert Quarry | Oliver Quayle | Unowned |
 |
Adrienne Corri | Faye | Unowned |
 |
Linda Hayden | Elizabeth Peters | Unowned |
 |
Natasha Pyne | Julia Wilson | Unowned |
 |
Michael Parkinson | T.V. Interviewer | Unowned |
 |
Barry Dennen | Gerry Blount | Unowned |
 |
Ellis Dayle | Alfred Peters (as Ellis Dale) | Unowned |
 |
Catherine Willmer | Louise Peters | Unowned |
|
Jenny Lee Wright | Carol Clayton | Unowned |
 |
Julie Crosthwaite | Ellen | Unowned |
 |
John Garrie | Inspector Harper | Unowned |
|
Ian Thompson | Bradshaw | Unowned |
 |
Peter Halliday | Psychiatrist | Unowned |
 |
Basil Rathbone | Basil (archive footage) | Unowned |
 |
Boris Karloff | (archive footage) | Unowned |
|
Hyma Beckley | Passenger on Quayside (uncredited) | Unowned |
|
George Blackler | George the Make-Up Artist (uncredited) | Unowned |
|
Robert Cawdron | CID Inspector (uncredited) | Unowned |
 |
Michael Craze | Reporter (uncredited) | Unowned |
 |
David Jackson | Police Sergeant (uncredited) | Unowned |
 |
Patrick Jordan | Ship's Steward (uncredited) | Unowned |
|
Earl Rhodes | Boy Fishing (uncredited) | Unowned |
|
Pam Rose | Pretty Blonde (uncredited) | Unowned |
 |
Christopher Sandford | Reporter (uncredited) | Unowned |
|
Reg Thomason | Hollywood Party Guest (uncredited) | Unowned |