Episodes
Regular cast
Captain Scarlet
Voice actor Francis Matthews
Captain Blue
Voice actor Ed Bishop
Captain Black
Voice actor Jeremy Wilkin ("The Mysterons") / Donald Gray (Mysteron voice)
Codename Lieutenant Green
Voice actor Cy Grant
The Mysterons
Voice actor Donald Gray
Narrator
Voice actor Ed Bishop
Episodes
18: Crater 101
Spectrum undertakes a hazardous project to de-activate a half-built Mysteron complex on the moon.
Additional cast & crew
Writer(s) Tony Barwick
Director(s) Ken Turner
Additional cast
Donald Gray: "Colonel White"
Gary Files: "Captain Magenta"
Sylvia Anderson: "Linda Nolan"
David Healy: "Frazer"
Jeremy Wilkin: "Schroeder"
Broadcast(s)
ITC order 21
January 26, 1968 (ATV Midlands)
January 28, 1968 (ATV London, STV, Channel, Westward and Border)
February 2, 1968 (UTV)
February 18, 1968 (Anglia)
February 20, 1968 (Granada)
March 1, 1968 (Grampian)
April 7, 1968 (Tyne Tees)
October 4, 1968 (HTV)
July 8, 1986 (Yorkshire)
March 11, 1994 (BBC2)
February 3, 1995 (BBC2)