Characters played by Marshall Thompson
Dr. Cliff Mitchell
Characters played by John Loder
Maj. Anderson
Characters played by Henry Oscar
John Manning
Characters played by John Stuart
Dr. Warren
Characters played by Anne Aubrey
Jill Warren
Characters played by Magda Miller
Ruth
Characters played by Murray Kash
Waldo
Characters played by Michael Mellinger
Tony Norwood
Characters played by Robert MacKenzie
Dale
Characters played by Tom Bowman
Charles
Characters played by Peter Elliott
Syms
Characters played by Bernard Archard
Inspector
Characters played by Stan Simmons
Tomkins
Characters played by Robert Dorning
Captain Scott
Characters played by Shirley Thieman
Shiela
Characters played by Harcourt Curaçao
Barman
Characters played by Victor Harrington
Undercover Intelligence Agent
Characters played by Robert Rietty
John Manning