斯特拉特福德·约翰斯

Stratford Johns

饰：Bates

Eugene Ankeny

饰：G. P. O. Boy

杰弗里·蔡特

Geoffrey Chater

饰：Inspector Warren

加菲·摩根

Garfield Morgan

雷金纳德·马什

Reginald Marsh

饰：Salcombe

厄休拉·豪威尔斯

Ursula Howells

饰：Louise Hilary

Walter Brown

饰：Mark Richards

罗纳德·亚当

Ronald Adam

饰：Sir John Fawcett

Bernard Archard

饰：Duke

Peter Williams

饰：Charles Hilary

阿诺德·戴蒙德

Arnold Diamond

饰：Ballistics Expert

David Morrell

饰：Detective Sergeant Day

芭芭拉·基奥

Barbara Keogh

Hedgar Wallace

饰：Prison Officer

Peter Howell

Peter Howell

饰：Carlton

Joy Stewart Spence

David Ensor

Cavan Malone

饰：Bob - Researcher

Peter Bathurst

饰：Police Doctor

Piers Keelan

Piers Keelan

饰：Brockton,(as Piers Kellan)