The superheroine Vixen made her first appearance in Action Comics #521 (July 1981). To mark the 45th anniversary of the series, Lex Luthor and Brainiac were both given an updated appearance in issue #544 (June 1983). Lex Luthor dons his war suit for the first time in the story “Luthor Unleashed!” and Brainiac’s appearance changes from the familiar green-skinned android to the metal skeletal-like robot in the story “Rebirth!”. Schwartz ended his run as editor of the series with issue #583 (September 1986) which featured the second part of the “Whatever Happened to the Man of Tomorrow?” story by Alan Moore and Curt Swan.
Following the events of Crisis on Infinite Earths, writer/artist John Byrne relaunched the Superman franchise in The Man of Steel limited series in 1986. Action Comics became a team-up title with issue #584 (January 1987). The first Action Comics Annual was published in 1987 and featured Superman teaming with Batman in a story written by Byrne and drawn by Arthur Adams. A DC Comics Bonus Book was included in issue #599 (April 1988).
From May 24, 1988 – March 14, 1989, the publication frequency was changed to weekly, the title changed to Action Comics Weekly, and the series became an anthology. Prior to its launch, DC cancelled its ongoing Green Lantern Corps title, and made Green Lantern and his adventures exclusive to Action Comics Weekly.