Suspect

Tony Britton

Dr. Robert Marriott

Virginia Maskell

Dr. Lucy Byrne

イアン・バネン

Alan Andrews

Kenneth Griffith

Dr Shole

ピーター・カッシング

Professor Sewell

Thorley Walters

Special Agent Prince

ドナルド・プレザンス

Parsons, alias Bill Brown

Spike Milligan

Arthur, lab orderly

Raymond Huntley

Sir George Gatting the Minister of Defense

Sam Kydd

Slater

Anthony Booth

Parkin

バジル・ディグナム

Dr Childs

Brian Oulton

Director

Robert Bruce

Levers

John Payne

Iverson

Bruce Wightman

Phil the Barman