Jimmy Edwards
— Sir Roderick Ryall/Hercules Ryall
Martita Hunt
— Aunt Anna Rose
Naunton Wayne
— Eustace Mills
Miles Malleson
— Mr. Walsh
Susan Stephen
— Mary O'Leary
Athene Seyler
— Consuelo Howard
June Clyde
— Mrs. Dorothy Cleghorn-Thomas
Brian Worth
— Phillip Ryall
Mara Lane
— Yvonne
Maire O'Neill
— Bridgid O'Keefe
Toke Townley
— William Burke
Irene Handl
— Nanny
Kenneth Kove
— Clergyman
Wilfrid Caithness
— Doctor
Joseph Tomelty
— Tim O'Leary
John McDarby
— Sean, the Cabbie
Alfie Bass
— Tipster