Patrick Barr

Det. Insp. Alan Wembury

Alexander Knox

Dr Anthony Lomond

Wilfrid Lawson

Maurice Meister

Sonnie Hale

Samuel Cuthbert 'Sam' Hackett

Louise Henry

Cora Ann Milton

John Longden

Inspector Bliss

Patricia Roc

Mary Lenley

Peter Croft

John Lenley

Arthur Hambling

Det. Sgt. Richards