Charles Laughton as Henry Horatio Hobson

John Mills as William Mossop

Brenda De Banzie as Maggie Hobson

Daphne Anderson as Alice Hobson

Prunella Scales as Vicky Hobson

Richard Wattis as Albert Prosser

Derek Blomfield as Freddy Beenstock

Helen Haye as Mrs. Hepworth

Joseph Tomelty as Jim Heeler

Julien Mitchell as Sam Minns

Gibb McLaughlin as Tudsbury

Philip Stainton as Denton

Dorothy Gordon as Ada Figgins

Madge Brindley as Mrs. Figgins

John Laurie as Dr. McFarlane

Raymond Huntley as Nathaniel Beenstock

Jack Howarth as Tubby Wadlow

Herbert C. Walton as Printer

Edie Martin as Old Lady Buying Shoelaces (uncredited)

Leonard Sharp as Tailor who rents shop to William Mossop (uncredited)

Robert Brooks Turner as Beanstock Worker Who Finds Hobson in Cellar (uncredited)