Dr. Thomas Bolton
Boris Karloff
Susan
Betta St. John
Rosa (as Yvonne Warren)
Yvonne Romain
Chief Inspector
Howard Lang
Hardcastle
Charles Lloyd Pack
Hospital Official
Bernard Archard
Arrested Woman (uncredited)
Marianne Stone
Operations Assistant (uncredited)
Desmond Llewelyn
(uncredited)
Skip Martin
Resurrection Joe
Christopher Lee
Supt. Charles Matheson
Finlay Currie
Rachel
Adrienne Corri
Black Ben
Francis de Wolff
Jonathan Bolton
Francis Matthews
Mr. Blount
Frank Pettingell
Hospital Chairman
Basil Dignam
Insp. Donovan
Nigel Green
Third Assistant Director
Michael Stevenson
Art Direction
Anthony Masters
Director
Robert Day
Director of Photography
Geoffrey Faithfull
Screenplay
Jean Scott Rogers
Editor
Peter Mayhew
Original Music Composer
Buxton Orr
Production Manager
George Mills
Producer
Charles F. Vetter
Executive Producer
Richard Gordon
Makeup Artist
Wally Schneiderman
Associate Producer
John Croydon
Assistant Director
Peter Bolton
Sound Recordist
Maurice Askew
Hairstylist
Eileen Warwick
Continuity
Susan Dyson
Cyril Swern