Carol Lynley as Sylvia Daly

Christopher Cazenove as Frank Daly

David Healy as Jack Mervyn

Judy Loe as Betty Mervyn

Bernard Kay as Mr. Donald Prentice

Vivienne Burgess as Mrs. Jessica Prentice

Brandon Price as Paranormal Research Scientist

Peter Bland as Policeman

Hugh Sullivan as Director

Marianne Stone as Woman Downstairs

Anthony Morton as Maitre D

John D. Collins as Estate Agent

Carl Rigg as Hotel Manager

David Auker as Removal Man