Liam Redmond
Cmdr. Robert Brennan
André Morell
Supt. Folland
Kenneth Griffith
Jimmy Ellis
Anthony Bushell
Maj. Elliott
Mary Morris
Anna Braun
Joan Hickson
Mrs. Ellis
Anthony Nicholls
Grant Mansfield
Geoffrey Keen
Morgan Williams
John Bailey
Stringer
Patric Doonan
George Ellis
Dora Bryan
Mrs. Bowers
Stuart Lindsell
Commissioner
John Harvey
Scotland Yard Man
Charles Lloyd Pack
Percy Ward
Laurence Naismith
Reginald Gordon-Wells
Jack McNaughton
Benson - Scotland Yard man
Julian Amyes
Slater
Alfie Bass
Albert Brewer (uncredited)
Hélène Burls
Mrs Skinner (uncredited)
Basil Cunard
Pier Superintendant (uncredited)
Harry Fowler
Street photographer (uncredited)
Everley Gregg
Mrs Finch-Harvey - Music Club member (uncredited)
George Hilsdon
Detective (uncredited)
Glyn Houston
Railway shunter (uncredited)
Douglas Ives
Mr Mathews - Union Rep (uncredited)
Moultrie Kelsall
Ship's Captain (uncredited)
Sam Kydd
Sam - Printer (uncredited)
Victor Maddern
Anarchist (uncredited)
Julien Mitchell
Mr Philips - Union Rep (uncredited)
Julian Somers
Scottish Police Sergeant (uncredited)
Marianne Stone
Alfie's Mother (uncredited)
John Warwick
Inspector Hewitt (uncredited)
Lockwood West
Home Secretary (uncredited)
Bruce Seton
(uncredited)
Richard Shaw
Man Dining in Cafe (uncredited)
Howard Lang
Policeman Discovering Jimmy's Body (uncredited)
Pauline Winter
Miss Laurie - Music Club member (uncredited)
Jean Anderson
Woman in street (uncredited)
Hyma Beckley
Music Club member (uncredited)
John Boxer
Ship's radio operator (uncredited)
Cyril Conway
Anarchist (uncredited)
Philip Dale
Man serving in cafe (uncredited)
Andrew Donally
Printer's assistant (uncredited)
Victor Harrington
Police clerk (uncredited)
Stephen Jack
Police Inspector (uncredited)
Barry Johns
Student exiting Tutorial College (uncredited)
Peter Jones
Announcer at Music Club (uncredited)
Howard Lang
Policeman (uncredited)
Frank Ling
Telephone engineer (uncredited)
Harry Locke
Andy - Telephone engineer (uncredited)
Richard Massingham
Music Society member (uncredited)
Dandy Nichols
Woman scrubbing porch step (uncredited)
Tony Quinn
Chemistry lecturer (uncredited)
Bill Rayment
Power station worker (uncredited)
Charles Rolfe
Policeman at Records Office (uncredited)
Reg Thomason
Student exiting Tutorial College (uncredited)
Joe Wadham
Power station worker (uncredited)
Michael Ward
Music Club member (uncredited)
John Warren
Barman (uncredited)
Ian Wilson
Glass collector (uncredited)
