Christopher Lee
Charles
Lois Maxwell
Lois
Noel Howlett
Psychiatrist (uncredited)
Valentine Dyall
Counsel for the Defence (uncredited)
Thora Hird
Visitor in Tussauds
Eric Portman
Paul Mangin
Edana Romney
Mifanwy
Barbara Mullen
Veronica
Hugh Sinclair
Owen Rhys
Bruce Belfrage
Sir David Conway
Alan Wheatley
Edgar Orsen
Joan Maude
Caroline Hart
Hugh Latimer
Bing
John Penrose
Brandy
Mavis Villiers
Babs
Gordon McLeod
Public Prosecutor (uncredited)
Susanne Gibbs
Gwendoline (uncredited)