Cast
- Marshall Thompson as Dr. Cliff Mitchell
- John Loder as Maj. Anderson
- Henry Oscar as John Manning
- John Stuart as Dr. Warren
- Anne Aubrey as Jill Warren
- Magda Miller as Ruth
- Murray Kash as Waldo
- Michael Mellinger as Tony Norwood
- Robert MacKenzie as Dale
- Tom Bowman as Charles
Crew
- Ronald Kinnoch · Director
- Brian Clemens · Writer
- Ronald Kinnoch · Writer
- Ronald Kinnoch · Producer
- Albert Elms · Composer
- Geoffrey Faithfull · Cinematographer
- Peter Mayhew · Editor
- Bill Constable · Production designer