Cast
John Robinson
Sir Colenso Ridgeon
Peter Sallis
Secretary at Picture Gallery
Leslie Caron
Mrs. Dubedat
Dirk Bogarde
Louis Dubedat
Joan Benham
Visitor at Art Exhibition (Uncredited)
Alastair Sim
Cutler Walpole
Robert Morley
Sir Ralph Bloomfield-Bonington
Felix Aylmer
Sir Patrick Cullen
Alec McCowen
Redpenny
Terence Alexander
Mr. Lanchester
Michael Gwynn
Dr. Blenkinsop
Maureen Delaney
Emmy
Colin Gordon
Newspaper Man