Benny Hill
Hugo Dill
Acting
Belinda Lee
Frankie Mayne
Acting
David Kossoff
Zacco
Acting
Garry Marsh
Det. Inp. Hancock
Acting
Denis Shaw
Professor Stumpf
Acting
Ernest Thesiger
Sir Walter
Acting
George Margo
Barakov
Acting
Frederick Schiller
Gruber
Acting
Thorley Walters
Raymond Courtney
Acting
Stratford Johns
PC Coleman
Acting
Warwick Ashton
PC Roberts
Acting
Norah Blaney
The Actress
Acting
Charles Hawtrey
Disc Jockey
Acting
Nicholas Phipps
Scientist
Writing
Peter Bull
Scientist
Acting
Gibb McLaughlin
Scientist
Acting
Ernest Jay
Scientist
Acting
Harold Scott
Scientist
Acting
Terence Alexander
Radio Show Official (uncredited)
Acting
Irene Handl
Customer (uncredited)
Acting
Arthur Lowe
Shop demonstrator (uncredited)
Acting
Glyn Houston
Arresting Policeman (uncredited)
Acting
Jeremy Hawk
Himself
Acting
Philip Stainton
Frankie's Agent
Acting