Cast
James Mason
Dr. John Polidori
Leonard Whiting
Victor Frankenstein
David McCallum
Dr. Henri Clerval
Jane Seymour
Agatha/Prima
Nicola Pagett
Elizabeth Fanschawe
Michael Sarrazin
The Creature
Michael Wilding
Sir Richard Fanshawe
Clarissa Kaye-Mason
Lady Fanschawe (as Clarissa Kaye)
Julian Barnes
Young Man
Agnes Moorehead
Mrs. Blair
Margaret Leighton
Francoise DuVal
Ralph Richardson
Mr. Lacey
John Gielgud
Chief Constable
Tom Baker
Sea Captain
Arnold Diamond
Passenger in Coach
Yootha Joyce
Hospital Matron
Peter Sallis
Priest
Dallas Adams
Felix
Derek Deadman
1st Seaman (uncredited)
Paddy Joyce
1st Helper (uncredited)
Norman Rossington
Seaman (uncredited)
Elizabeth Spender
Ballroom Guest (uncredited)
Jeremy Young
2nd Helper (uncredited)