Hugh Sinclair

Humphrey Mansfield

Griffith Jones

James Brodie

Francis L. Sullivan

Leon Poiccard

Frank Lawton

James Terry

Anna Lee

Ann Lodge

Alan Napier

Sir Hamar Ryman M.P.

Basil Sydney

Frank Snell

Lydia Sherwood

Myra Hastings

Edward Chapman

B.J. Burrell

Athole Stewart

Police Commissioner

George Merritt

Inspector Falmouth

Garry Marsh

Bill Grant

Ellaline Terriss

Lady Willoughby

Roland Pertwee

Mr Hastings

Eliot Makeham

Simmons

Frederick Piper

Pickpocket (uncredited)

Henrietta Watson

Mrs. Truscott

Jon Pertwee

Rally campaigner (uncredited)

Liam Gaffney

Taxi driver (uncredited)

Manning Whiley

(uncredited)

Neal Arden

(uncredited)

Basil Radford

(uncredited)

Edward Rigby

(uncredited)

Paul Sheridan

(uncredited)

Winston Churchill

Self (archive footage) (uncredited)

Arthur Hambling

Constable Benham

Bryan Herbert

Taxi driver (uncredited)

Adolf Hitler

Self (archive footage) (uncredited)

James Knight

Policeman Outside Parliament (uncredited)

Percy Parsons

American Broadcaster (uncredited)

Charles Paton

Platform Speaker (uncredited)

Percy Walsh

Prison Governor (uncredited)