The Testament of Arkadia/Credits

Cast

 * Martin Landau as Commander John Koenig
 * Barbara Bain as Dr. Helena Russell
 * Barry Morse as Prof. Victor Bergman
 * Orso Maria Guerrini as Luke Ferro
 * Lisa Harrow (Credited as Liza Harrow) as Anna Davis
 * Prentis Hancock as Paul Morrow
 * Clifton Jones as David Kano
 * Zienia Merton as Sandra Benes
 * Anton Phillips as Dr. Mathias
 * Nick Tate as Alan Carter

Uncredited

 * Tony Allyn and Quentin Pierre as Security Guards
 * Sarah Bullen as Operative Kate
 * Loftus Burton, Andy Dempsey, Ann Maj-Brit and Michael Stevens as Main Mission Operatives
 * Robert Rietty as Luke Ferro's voice
 * Shane Rimmer as Eagle Pilot
 * Suzanne Roquette as Tanya Aleksandr

Crew

 * Directed by David Tomblin
 * Written by Johnny Byrne
 * Produced by Gerry Anderson (Executive producer) Sylvia Anderson (Producer)
 * Music by Barry Gray
 * Cinematography by Frank Watts
 * Film Editing byDerek Chambers (as Derek Hyde Chambers)
 * Supervising editor David Lane (as Dave Lane)
 * Casting By Michael Barnes
 * Production Design by Keith Wilson
 * Makeup Department
 * Helene Bevan: Hair designer
 * Ann Cotton: Makeup artist
 * Production Management
 * Ron Fry: Production manager
 * Second Unit Director or Assistant Director
 * Ken Baker: Assistant director
 * Art Department
 * Bill Beavis: Scenic artist (uncredited)
 * Sound Department
 * David Bowen: Sound recordist
 * Peter Pennell: Sound editor
 * Special Effects
 * Nick Allder: Special effects director
 * Michael S.E. Downing: Electronics
 * Frank Drake: Camera operator
 * Brian Johnson: Special effects
 * Harry Oakes: Lighting cameraman
 * Andrew Kelly: Model maker (uncredited)
 * Visual Effects
 * Martin Bower: Model maker (uncredited)
 * Camera and Electrical Department
 * Neil Binney: Camera operator
 * Costume and Wardrobe Department
 * Rudi Gernreich: Costumes: moon city
 * Eileen Sullivan: Wardrobe
 * Music Department
 * Vic Elms: Associate
 * Alan Willis: Music editor
 * Script and Continuity Department
 * Gladys Goldsmith: Continuity
 * Transportation Department
 * Ray Atkins: Driver (uncredited)
 * Steve Smith: Driver (uncredited)
 * Doug Wetherley: Driver (uncredited)
 * Additional Crew
 * Jeremy Coote: Runner (uncredited)