Calificación
Reparto

Judith Anderson
Elizabeth Devlin

Elizabeth Ashley
Sally Devlin

David McCallum
Kenneth Canfield

Mary Adams
The Maid

Barry Cahill
The Sergeant

Alan Caillou
The Police Inspector

Helmut Dantine
Hans Raedler

Gregory Gaye
The Soviet Ambassador

Larry Gelbman
The Manservant

Lew Horn
The Intruder

Peter Marland-Jones
Tichborne

Donald Moffat
John Heywood

Priscilla Morrill
Tatiana Kogan

Laurence Naismith
Lord Pomeroy

Charles H. Radilak
Lancome