Colonel March of Scotland Yard

Eric Pohlmann

Commissionner Aristide Goron· 30 ep

Boris Karloff

Colonel March Of Scotland Yard· 26 ep

Ewan Roberts

Inspector Ames· 26 ep

Phil Brown

Dr. Bryan Hayes· 2 ep

Marne Maitland

Thoreau· 2 ep

Anton Diffring

Francois· 2 ep

Patrick Barr

Horton· 1 ep

Russell Waters

Hocksby· 1 ep

Alan Wheatley

O'Brien· 1 ep

Olaf Pooley

Carlmeddy· 1 ep

Hubert Gregg

Pennacott· 1 ep

Rosalie Crutchley

Annette· 1 ep

Richard O'Sullivan

Roger· 1 ep

Eliot Makeham

1st Judge· 1 ep

Mary Clare

Mrs. Wrigley· 1 ep

Zena Marshall

Madeleine· 1 ep

Patricia Owens

Betty Hartley· 1 ep

George Coulouris

Harwood· 1 ep

John Hewer

John Parrish· 1 ep

Elspet Gray

Johanna· 1 ep

Anthony Newley

Ned· 1 ep

Glyn Houston

Peter Ridgway· 1 ep

Christopher Lee

Jeanpierre· 1 ep

Rachel Gurney

Martha· 1 ep

Tony Wright

Terry Fortescue / Henry Fortescue· 1 ep

Richard Wattis

Arthur Cabot· 1 ep

Peter Dyneley

Red Darrow· 1 ep

Laurence Payne

Delius· 1 ep

Lionel Murton

Crowder· 1 ep

Alec Mango

Narbu· 1 ep

Michael Shepley

Sir Nigel· 1 ep

Nora Gordon

Housekeeper· 1 ep

Peter Illing

Lavois· 1 ep

Joan Sims

Marjorie Dawson· 1 ep

Tommy Duggan

Lawton· 1 ep

John Laurie

Dr. Brandeis· 1 ep

Dana Wynter

Francine Rapport· 1 ep

John Arnatt

Wesley· 1 ep

Hugh Griffith

Dr. Ivy· 1 ep

Adrienne Corri

Clara· 1 ep

Patrick Holt

Paul· 1 ep

Doris Hare

Lydia· 1 ep

Rachel Kempson

Helen Rune· 1 ep

Arthur Hill

Jerry· 1 ep

Bruce Seton

Capt. Hartnett (uncredited)· 1 ep

Robert Brown

Hastings· 1 ep

Sheila Burrell

Joan Forsythe· 1 ep

Robert Ayres

Wyatt· 1 ep

Sandra Dorne

Rosie· 1 ep

Alfred Burke

Minister· 1 ep

Ronald Leigh-Hunt

Ireton Boulder· 1 ep

Eugene Deckers

Phillipe· 1 ep

Patricia Laffan

Jane· 1 ep

Hugh Williams

Harold Hartley· 1 ep

Patricia Marmont

Marion· 1 ep

Martin Benson

Dupont· 1 ep

Peter Asher

Andrew· 1 ep

Michael Alexander

Dr. Walker· 1 ep

Lloyd Lamble

Kane· 1 ep