David Farrar

Sexton Blake

Dennis Price

Dick Warren

Pamela Stirling

Stella Duncan

Julien Mitchell

James Duncan (as Julian Mitchell)

Cyril Smith

P.C. Morgan

Ferdy Mayne

Paul Dacier

Dennis Arundell

Phillip Rainsford

Johnnie Schofield

Purvis

Paul Croft

Marat

Kynaston Reeves

Beales

Desmond Roberts

Cotter

Danny Green

Carl

Patric Curwen

Dr. Grey

Tony Arpino

Fox

Vincent Holman

Col. Wills

Howard Douglas

Preston

Billy Howard

Sergeant Crossby

Anders Timberg

Wrexham

H Victor Weske

Otto

Gerald Pring

Sir Horace Cranston

Noel Dainton

Van Schuster

Olive Walter

Housekeeper