In Possession

Carol Lynley

Sylvia Daly

Christopher Cazenove

Frank Daly

David Healy

Jack Mervyn

Judy Loe

Betty Mervyn

Bernard Kay

Mr. Donald Prentice

Vivienne Burgess

Mrs. Jessica Prentice

Brandon Price

Paranormal Research Scientist

Peter Bland

Policeman

Hugh Sullivan

Director

Marianne Stone

Woman Downstairs