Alastair Sim as Felix H. Wilkinson

Jack Warner as Nightingale

Valerie White as Rhona

Jack Lambert as Ford

Harry Fowler as Joe Kirby

Douglas Barr as Alec

Stanley Escane as Roy

Ian Dawson as Norman

Gerald Fox as Dicky

David Simpson as Arthur

Albert Hughes as Wally

John Hudson as Stan

David Knox as Dusty

Jeffrey Sirett as Bill

James Crabbe as Terry

Joan Dowling as Clarry

Frederick Piper as Mr. Kirby

Vida Hope as Mrs. Kirby

Heather Delaine as Dorrie Kirby

Paul Demel as Jago

Alec Finter as Det.-Sgt. Fothergill

Bruce Belfrage as B.B.C. Announcer

Grace Arnold as Dicky’s Mother

Arthur Denton as Vicar

Robin Hughes as Selwyn Pike

Howard Douglas as Watchman

Harry Purvis as Larry the Bull

Joey Carr as Shorty

Peter Mullins as Boy (uncredited)

Andrew Sachs as Schoolboy (uncredited)

Fred Wood as Congregation Member (uncredited)