萨缪尔·韦斯特

Samuel West

饰：Narrator

Jason Desporte

饰：Self - Manager, Chislehurst Caves

Keith Skinner

饰：Self - historical researcher

Judith Flanders

饰：Self - author, The Invention of Murder

John Farndon

饰：Self - author, dramatist, Napoleon of Crime

John Shatford

饰：Self - Detective Chief Superintendent (retired), Scotland Yard Flying Squad

Kate Colquhoun

饰：Self - author, Murder in the First Class Carriage

Oleg Gordievsky

饰：Self

Gordon Corera

饰：Self

Peter Hawkshaw

饰：François Benjamin Courvoisier (Lord William Russels valet

Jelena Bekvalac

饰：Self - Osteologist, Museum of London

Mike Ashworth

饰：Self - Design & Heritage Manager TFL

李·尼古拉斯·哈里斯

Lee Nicholas Harris

饰：1940's Police Officer

David K. Whiting