In need of cash, Roger Cavendish and his valet take a job escorting the perfect woman for a night on the town. She is in fact the robotic creation of Professor Belman, but it turns out rather to be the Professor's niece Penelope doing a pretty good imitation of the perfect Olga who winds up with them in the bridal suite at the Hotel Splendide.
Patricia Roc
as Penelope Belman
Nigel Patrick
as Roger Cavendish
Stanley Holloway
as Ramshead
Miles Malleson
as Prof. Ernest Belman
Irene Handl
as Mrs. Butters
Pamela Devis
as Olga the Robotrix
Philippa Gill
as Lady Mary Bromash
Anita Sharp-Bolster
as Lady Diana
Fred Berger
as Hotel Proprietor Farini
David Hurst
as Wolfgang Wilhelm Winkel II (Swiss waiter)
Jerry Desmonde
as Dress Shop Owner
Noel Howlett
as The Professor's Associate
