U.F.O.

• 
  Ed Bishop
  Cmdr. Ed Straker
• 
  Dolores Mantez
  Nina Barry
• 
  Michael Billington
  Col. Paul Foster
• 
  Ayshea Brough
  SHADO Operative
• 
  George Sewell
  Col. Freeman
• 
  Keith Alexander
  Shado Radio Operator
• 
  Antonia Ellis
  Joan Harrington
• 
  Gary Myers
  Capt. Waterman
• 
  Gabrielle Drake
  Lt. Ellis
• 
  Vladek Sheybal
  Dr. Doug Jackson
• 
  Jon Kelley
  Skydiver Engineer
• 
  Norma Ronald
  Miss Ealand
• 
  Wanda Ventham
  Col. Virginia Lake
• 
  Grant Taylor
  Gen. James Henderson
• 
  Jeremy Wilkin
  Skydiver Navigator
• 
  Georgina Moon
  Skydiver Operative
• 
  Harry Baird
  Mark Bradley
• 
  Peter Gordeno
  Capt. Carlin
• 
  Andrea Allan
  Moonbase Operative Carol Miller
• 
  Anouska Hempel
  SHADO Radio Operator Tamara Paulson
• 
  Steven Berkoff
  Captain Steve Minto
• 
  Maxwell Shaw
  Dr. Shroeder
• 
  Basil Moss
  Dr. Frazer
• 
  Gito Santana
  Alien
• 
  Alan Tucker
  Lunar Module Pilot
• 
  Mark Hawkins
  Astronaut
• 
  Shane Rimmer
  Lt. Bill Johnson
• 
  John Lyons
  SHADO Checkpoint Guard
• 
  Peter Burton
  Dr. Murray
• 
  Penny Spencer
  SHADO Operative

• David Lane
• Ken Turner
• Alan Perry
• Jeremy Summers
• David Tomblin
• Cyril Frankel
• Gerry Anderson
• Ron Appleton

• Gerry Anderson
  ...
  (format)
• Sylvia Anderson
  ...
  (format)
• Reg Hill
  ...
  (format)
• Tony Barwick
  ...
  (teleplay)
• David Tomblin
  ...
  (teleplay)
• Ruric Powell
  ...
  (teleplay)
• Alan Fennell
  ...
  (teleplay by)
• Terence Feely
  ...
  (teleplay)
• Donald James
  ...
  (teleplay)
• Alan Pattillo
  ...
  (teleplay)
• Dennis Spooner
  ...
  (teleplay by)
• Bob Bell
  ...
  (teleplay)
• David Lane
  ...
  (teleplay)
• Ian Scott Stewart
  ...
  (teleplay)