Cast
Carol Marsh
Susan Graham
David Tomlinson
Nick Martin
Mervyn Johns
Ernest Bennett
Richard Hearne
Professor Pastry
Terry-Thomas
Self
Jimmy Edwards
Dr. Edwards
Peter Hammond
Spencer Stone
Jon Pertwee
Headwaiter
Wilfrid Hyde-White
Dr. B. Jekyll
Peter Haddon
Major Basil Beagle
Geoffrey Sumner
Humphrey Beagle
Zena Marshall
Giselle
Colin Gordon
Chadbeater Longwick
Judith Furse
Mrs. Martin
Edmund Willard
Ezekial
Robert Lamouret
The 'Duck' Man
Henry Kendall
Lord Bruce Carlton
Bill Fraser
Oliver Cromwell
Shirl Conway
Cabaret Star
George Benson
Temporary Waiter
Sandra Dorne
Receptionist
Patricia Raine
Amber
Ronald Adam
Director General of the BBC (uncredited)
Michael Balfour
Barman (uncredited)
Johnny Briggs
BBC Page Boy (uncredited)
Esma Cannon
Autograph Huntress (uncredited)
Cyril Chamberlain
(uncredited)
Andrew Crawford
First BBC Announcer (uncredited)
Valentine Dyall
Man Telling Story at BBC (uncredited)
Danny Green
Liftman (uncredited)
Kenneth Griffith
Nick Martin's BBC Colleague (uncredited)
Anne Gunning
Young Woman (uncredited)
James Hayter
Inn Landlord (uncredited)
Glynis Johns
Miranda Trewella (uncredited)
Michael Medwin
Man Giving BBC Boxing Talk (uncredited)
Hal Osmond
Radio Sound-Effects Man (uncredited)
Brian Oulton
BBC Producer (uncredited)
Wally Patch
BBC Commissionaire (uncredited)
Dennis Price
Lord Byron (archive footage) (uncredited)
Basil Radford
Maj. Bright (uncredited)
Harry Secombe
Alf (uncredited)
Anthony Steel
(uncredited)
David Ward
Ghost (uncredited)
Michael Ward
News Reader (uncredited)
Richard Wattis
Compere of Nick Nack Show (uncredited)
Naunton Wayne
Capt. Early (uncredited)
Crew
Editing
Bob Wilson
Editor
Production
Antony Darnborough
Producer
Alfred Roome
Associate Producer
William N. Boyle
Production Manager
Sound
Muir Mathieson
Music Director
B. C. Sewell
Sound Director
Francis Chagrin
Original Music Composer
Bill Salter
Sound Recordist
Sydney Wiles
Sound Recordist
Writing
Patrick Campbell
Writer