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)