Colonel March Investigates

Boris Karloff

Colonel March

Ewan Roberts

Inspector Ames

Joan Sims

Marjorie Dawson

Richard Wattis

Cabot

Sheila Burrell

Joan Forsythe

Anthony Forwood

Jim Hartley

Ronald Leigh-Hunt

Ireton Bowlder

Patricia Owens

Betty Hartley

John Hewer

John Parrish

Roger Maxwell

Maj. Rodman