George Formby
George Trotter
Billy Caryll
Tiger Tubbs
Hilda Mundy
Ma Tubbs
Gaston Palmer
Le Grand Gaston
Jack Daly
Terry O'Rourke
Carl Jaffe
Hilary Vance
Marjorie Browne
Betty Dickson
Wally Patch
Det Sgt. Carp
Ian Fleming
Chief Inspr. Twyning
Vincent Holman
Erasmus Montague
Dennis Wyndham
Tom Driscoll
Gordon McLeod
Supt. Belstock
Merle Tottenham
Tessie
Georgina Cookson
Willow Thane
Jack Raine
J.B. Cato
Honor Boswell
Alpha
Beryl Boswell
Omega
Jacques Brown
Professor Borgensen (uncredited)