High Treason

Liam Redmond

as Cmdr. Robert Brennan

André Morell

as Supt. Folland

Kenneth Griffith

as Jimmy Ellis

Anthony Bushell

as Maj. Elliott

Mary Morris

as Anna Braun

Joan Hickson

as Mrs. Ellis

Anthony Nicholls

as Grant Mansfield

Geoffrey Keen

as Morgan Williams

John Bailey

as Stringer

Patric Doonan

as George Ellis

Dora Bryan

as Mrs. Bowers

Stuart Lindsell

as Commissioner

John Harvey

as Scotland Yard Man

Charles Lloyd Pack

as Percy Ward

Laurence Naismith

as Reginald Gordon-Wells

Jack McNaughton

as Benson - Scotland Yard man

Julian Amyes

as Slater

Alfie Bass

as Albert Brewer (uncredited)

Hélène Burls

as Mrs Skinner (uncredited)

Basil Cunard

as Pier Superintendant (uncredited)

Harry Fowler

as Street photographer (uncredited)

Everley Gregg

as Mrs Finch-Harvey - Music Club member (uncredited)

George Hilsdon

as Detective (uncredited)

Glyn Houston

as Railway shunter (uncredited)

Douglas Ives

as Mr Mathews - Union Rep (uncredited)

Moultrie Kelsall

as Ship's Captain (uncredited)

Sam Kydd

as Sam - Printer (uncredited)

Victor Maddern

as Anarchist (uncredited)

Julien Mitchell

as Mr Philips - Union Rep (uncredited)

Julian Somers

as Scottish Police Sergeant (uncredited)

Marianne Stone

as Alfie's Mother (uncredited)

John Warwick

as Inspector Hewitt (uncredited)

Lockwood West

as Home Secretary (uncredited)

Bruce Seton

as (uncredited)

Richard Shaw

as Man Dining in Cafe (uncredited)

Howard Lang

as Policeman Discovering Jimmy's Body (uncredited)

Pauline Winter

as Miss Laurie - Music Club member (uncredited)

Jean Anderson

as Woman in street (uncredited)

Hyma Beckley

as Music Club member (uncredited)

John Boxer

as Ship's radio operator (uncredited)

Cyril Conway

as Anarchist (uncredited)

Philip Dale

as Man serving in cafe (uncredited)

Andrew Donally

as Printer's assistant (uncredited)

Victor Harrington

as Police clerk (uncredited)

Stephen Jack

as Police Inspector (uncredited)

Barry Johns

as Student exiting Tutorial College (uncredited)

Peter Jones

as Announcer at Music Club (uncredited)

Howard Lang

as Policeman (uncredited)

Frank Ling

as Telephone engineer (uncredited)

Harry Locke

as Andy - Telephone engineer (uncredited)

Richard Massingham

as Music Society member (uncredited)

Dandy Nichols

as Woman scrubbing porch step (uncredited)

Tony Quinn

as Chemistry lecturer (uncredited)

Bill Rayment

as Power station worker (uncredited)

Charles Rolfe

as Policeman at Records Office (uncredited)

Reg Thomason

as Student exiting Tutorial College (uncredited)

Joe Wadham

as Power station worker (uncredited)

Michael Ward

as Music Club member (uncredited)

John Warren

as Barman (uncredited)

Ian Wilson

as Glass collector (uncredited)