Wendy Hiller
Major Barbara Undershaft
Rex Harrison
Adolphus Cusins
Robert Morley
Andrew Undershaft
Robert Newton
Bill Walker
Sybil Thorndike
The General
Emlyn Williams
Snobby Prince
Marie Lohr
Lady Britomart
Penelope Dudley-Ward
Sarah Undershaft
Walter Hudd
Stephen Undershaft
David Tree
Charles Lomax
Deborah Kerr
Jenny Hill
Donald Calthrop
Peter Shirley
Marie Ault
Rummy Mitchens
Cathleen Cordell
Mog Habbijam
Torin Thatcher
Todger Fairmile
Miles Malleson
Morrison
Felix Aylmer
James
Stanley Holloway
Policeman
S.I. Hsiung
Ling
Kathleen Harrison
Mrs. Price
Mary Morris
A Girl
Charles Victor
Bilton (uncredited)
O.B. Clarence
Pettigrew (uncredited)
Dane Gordon
Cast Member (uncredited)
Edward Rigby
Man on Quayside (uncredited)
George Bernard Shaw
Himself (in theatrical release print only) (uncredited)
Billy Wells
Minor Role (uncredited)