New Scotland Yard

CS John Kingdom

DS Alan Ward / DI Alan Ward

DCS Tom Clay / CS Petersen

DS Dexter

DS Bates

Harry Carson

Angela Kingdom

WDC Fry / WPC Fry

Police Surgeon / Dr Brinsley

DC Thomas

Adams / DI Hall

William Radkin / Barman

Dr Cyril Cobb

Phillip Barkis

Judge

DS Robert Gilson

DS Tree / DI Fletcher

Driver / Bogus Policeman

DI Willis

Ronnie James / Chalky White

Jury Foreman / Clerk of the Court

George Onslow / Barrett

PC Gunter / Leach

DS Nora Burrows / Carlotta Ryan