Breakaway/Credits

Cast

 * Martin Landau as Commander John Koenig
 * Barbara Bain as Dr. Helena Russell
 * Barry Morse as Prof. Victor Bergman
 * Roy Dotrice as Commissioner Simmonds
 * Prentis Hancock as Paul Morrow
 * Zienia Merton as Sandra Benes
 * Anton Phillips as Dr. Bob Mathias
 * Nick Tate as Alan Carter
 * Philip Madoc as Commander Gorski
 * Lon Satton as Benjamin Ouma
 * Eric Carte as Collins

Uncredited

 * Tony Allyn, Maxwell Craig and Joe Dunne as Security Guards
 * Quentin Pierre as Pierce Quinton
 * Loftus Burton, Chai Lee, Christopher Matthews, Valerie Van Ost, Norma West and Paul Weston as Main Mission Operatives
 * Laurie Davis as Stewardes
 * Don Fellows as GTV Newscaster
 * Alan Harris as Alphan
 * Alf Joint as Steiner
 * Barbara Kelly as Computer (voice)
 * Shane Rimmer as Eagle Pilot (voice)
 * Suzanne Roquette as Tanya Aleksandr
 * Roy Scammell as Jim Nordstrom
 * Nik Zaran as Astronaut Jackson

Crew

 * Directed By Lee H. Katzin
 * Written By George Bellak
 * Produced By Gerry Anderson (Executive Producer) and Sylvia Anderson (Producer)
 * Music By Barry Gray
 * Cinematography By Frank Watts
 * David Lane: Supervising Editor (As Dave Lane)
 * Geoffrey Mackrill: Assistant Editor (Uncredited)
 * Casting By Michael Barnes
 * Production Design By Keith Wilson
 * Helene Bevan: Hair Designer
 * Basil Newall: Makeup Artist
 * Ron Fry: Production Manager
 * Ken Baker: Assistant Director
 * Bill Beavis: Scenic Artist (Uncredited)
 * John Chisholm: Props (Uncredited)
 * David Bowen: Sound Recordist
 * Chris Munro: Sound Camera Operator
 * Peter Pennell: Sound Editor
 * 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)
 * Tony White: Camera Operator
 * Rudi Gernreich: Costumes: Moon City
 * Eileen Sullivan: Wardrobe
 * Vic Elms: Music Associate
 * Alan Willis: Music Editor
 * Edward di Lorenzo: Script Editor
 * Gladys Goldsmith: Continuity
 * Christopher Penfold: Story Consultant