George Trotter
George Formby
Tiger Tubbs
Billy Caryll
Tom Driscoll
Dennis Wyndham
Supt. Belstock
Gordon McLeod
Tessie
Merle Tottenham
Willow Thane
Georgina Cookson
J.B. Cato
Jack Raine
Alpha
Honor Boswell
Omega
Beryl Boswell
Professor Borgensen (uncredited)
Jacques Brown
Ma Tubbs
Hilda Mundy
Le Grand Gaston
Gaston Palmer
Terry O'Rourke
Jack Daly
Hilary Vance
Carl Jaffe
Betty Dickson
Marjorie Browne
Det Sgt. Carp
Wally Patch
Chief Inspr. Twyning
Ian Fleming
Erasmus Montague
Vincent Holman
Director
Marcel Varnel
Producer
Screenplay
Norman Lee
Stephen Black
Howard Irving Young
Art Direction
George Provis
Cinematography
Roy Fogwell
Additional Writing
Michael Vaughan
Associate Producer
Ben Henry
Editor
Douglas Robertson
Peter Fraser