Peter Cushing

as The Proprietor

David Warner

as Edward Charlton

Donald Pleasence

as Jim Underwood

Ian Ogilvy

as William Seaton

Ian Carmichael

as Reginald Warren

Lesley-Anne Down

as Rosemary Seaton

Ian Bannen

as Christopher Lowe

Diana Dors

as Mabel Lowe

Margaret Leighton

as Madame Orloff

Nyree Dawn Porter

as Susan Warren

Angela Pleasence

as Emily Underwood

Jack Watson

as Sir Michael Sinclair

Tommy Godfrey

as Mr. Jeffries

Marcel Steiner

as The Face in the Mirror

Wendy Allnutt

as Pamela

Rosalind Ayres

as Prostitute - Edward's First Victim

Ben Howard

as Burglar

John O'Farrell

as Stephen Lowe

Dallas Adams

as 2nd Young Male New Flat Owner (uncredited)

Michael Crane

as 2nd Workman (uncredited)

Shaun Curry

as 1st Workman (uncredited)

Helen Fraser

as Guest (uncredited)

Scott Fredericks

as Man at Seance (uncredited)

Brian Hall

as Man on Phone (uncredited)