Action 21

Action 21 was an English publication which mostly reprinted comic strips set in the Gerry Anderson universe from TV Century 21. It was published across ten issues in 1988 and 1989.

Similarly to TV21, Action 21 was formatted so as to pass itself off as a news magazine printed exactly one hundred years in the future, although this meant that its stories were set in the 2080s rather than the 2060s setting originally presented in TV21. The magazine is of importance to the Doctor Who universe because the contribution of Fireball XL5 was the reprinting of the first story arc to involve the inhabitants of the planet Astra, which was first mentioned in the Doctor Who television story The Rescue. Action 21 also included new material with cover and Dateline stories providing extra context for the events surrounding those seen in the comic strips.