Marius Goring as Willie, Lord Lebanon

Helen Haye as Lady Lebanon

Penelope Dudley-Ward as Isla Crane

Felix Aylmer as Dr. Amersham

George Merritt as Det. Inspector Tanner

Ronald Shiner as Sergeant Totty

Patrick Barr as Richard Ferraby

Roy Emerton as Gilder

George Hayes as Brooks

John Warwick as Studd

Elizabeth Scott as Mrs. Tilling

Torin Thatcher as Jim Tilling, the Groundsman