Peter Cushing

Dr. Christopher Maitland

Christopher Lee

Sir Matthew Phillips

Patrick Wymark

Anthony Marco

Jill Bennett

Jane Maitland

Peter Woodthorpe

Bert Travers, Marco's Landlord

Nigel Green

Inspector Wilson

April Olrich

French Girl

George Coulouris

Dr. Londe

Maurice Good

Pierre, Phrenologist

Patrick Magee

Police Surgeon

Frank Forsyth

Judge

Michael Gough

Auctioneer

Anna Palk

Maid

Paul Stockman

First Guard

Geoffrey Cheshire

Second Guard

George Hilsdon

Policeman

Jack Silk

Driver

Paul Beradi

Auction Attendee (uncredited)

Ernest Blyth

Auction Attendee (uncredited)

Eric Kent

Auction Attendant (uncredited)

Jack Armstrong

Auction Bidder (uncredited)

Arthur Goodman

Auction Bidder (uncredited)

Harold Sanderson

Auction Bidder (uncredited)