- Marv Wolfman; George Perez (co-plotter)
- George Perez
- Jerry Ordway
- Tom Ziuko
- John Costanza
- Dolphin; Rip Hunter; Animal-Man; Captain Comet; Adam Strange; Atomic Knight (all as the Forgotten Heroes); Geo-Force; Metamorpho; Halo; Black Lightning (all as the Outsiders); Superman [Earth-2]; Wonder Woman [Earth-2]; Spectre [Jim Corrigan]; Starman [Ted Knight]; Power Girl; Flash [Jay Garrick]; Johnny Thunder [Earth-2]; Johnny Thunder's Thunderbolt; Huntress [Helena Wayne] (death); Robin [Earth-2] (death); (all as the Justice Society of America/JSA/All-Star Squadron); Star-Spangled Kid; Fury; Jade (all as Infinity Inc.); Green Arrow [Earth-2] (dies) Red Star; Kid Flash [Wally West] (becomes the Flash); Aqualad; Cyborg; Hawk; Dove (death); Kole (death); Wonder Girl; Changeling [Gar Logan]; Nightwing [Dick Grayson] (all as the New Teen Titans); Uncle Sam; Black Condor; The Ray; Human Bomb; Doll Man (all as the Freedom Fighters); Rocky Davis; Red Ryan; June Robbins; Prof. Haley; Ace Morgan (all as the Challengers of the Unknown); Tempest [Joshua Clay]; Negative Woman (all as the Doom Patrol); Uncle Marvel; Fat Marvel; Tall Marvel; Hillbilly Marvel (all as the Lt. Marvels); Mary Marvel; Captain Marvel [Billy Batson]; Captain Marvel Jr. (all as the Marvel Family); Dumb Bunny; Blimp; Merryman (all as the Inferior Five); Superman [Earth-1]; Wonder Woman [Earth-1] (devolved by Antimonitor); Phantom Stranger; Aquaman; Hawkman [Katar Hol]; Hawkwoman [Shayera Thal]; Elongated Man; Martian Manhunter [J'onn J'onzz]; Firestorm; Vixen; Zatanna; Flash [Barry Allen] (cameo); Batman [Earth-1] (all as the Justice League of America/JLA); Little Mermaid; Impala; Rising Sun; Jack O'Lantern; Godiva; Thunderlord; Doctor Mist; Green Fury; Owlwoman (all as the Global Guardians); Robin [Jason Todd]; Hippolyta; Paradise Island; Deadman; Harbinger; Dr. Light [Kimiyo Hoshi]; Blue Beetle [Ted Kord]; Peacemaker; Air Wave [Hal Jordan]; Blue Devil; Judomaster; Lori Lemaris (death); Ronal; Mera; B'wana Beast; Black Orchid; Thunder; Lightning; Captain Atom; Superboy [Earth-Prime]; Lady Quark; Pariah; Firehawk; Lana Lang; Lois Lane; Batgirl [Barbara Gordon]; Zatara; The Demon; Madame Xanadu; Dr. Occult; Psycho-Pirate [Roger Hayden]; Wildcat [Yolanda Montez]; Son of Vulcan; Vigilante [Adrian Chase]; Prince Ra-Man [Mark Merlin] (death); Warlord; Vigilante [Greg Sanders]; Cave Carson; Zeus; Steve Trevor [Earth-2]; Horatio Tomorrow; The Planeteers; Tommy Tomorrow (would have become Kamandi); Jonah Hex; The Monitor (flashback); Oa; Harlequin [Molly Mayne]; The Enchantress; Brainiac; Sunburst (death); Electrocutioner; Darkseid; Black Bison; The Wizard; Felix Faust; Blackbriar Thorn; Circe; Clayface [Matt Hagen] (death); Bug-Eyed Bandit (death); Ten-Eyed Man (death); Desaad; Sargon the Sorcerer (part of Earth's magic cabal); Antimonitor; Shadow Demons (villains-both die)
- The final battle between the Antimonitor and the heroes begins on 2 fronts: one on Earth, the other in the Antimatter universe. After great loss and suffering on both fronts, Superman [Earth-2] delivers the final blow to the Antimonitor and goes into a limbo alongside Superboy Prime, his wife Lois Lane Kent [Earth-2], and Alex Luthor Jr. never to be seen again for a long time. The only other person left to ever remember how the multiverse truly once existed as it did is Psycho Pirate [Roger Hayden], besides Pariah, Harbinger, and Lady Qwark.
- Fortress of Solitude
Deaths of Dove [Don Hall], Green Arrow (Earth-2), Kole, Lori Lemaris, Prince Ra-Man, and Sunburst. Robin (Earth-2) and Huntress (Helena Wayne) hurt during shadow demon attack ,but deaths unknown until Last Days of Justice Society Special one-shot (DC, 1986 series). Wonder Woman [Earth-1] devolved into clay by weakened antimatter blast from Antimonitor, and her history subsequently erased backwards through time (Legend of Wonder Woman (DC, 1986 series))- reborn via Wonder Woman (DC, 1987 series) and Legends (DC, 1987 series). Kid Flash becomes Flash, albeit at a reduced speed rate (3x's speed of sound) (DC, 1987 series).
This story would later be revisited and mentioned in Zero Hour (DC, 1994 series) and Infinite Crisis (DC, 2005 series) as well as other DC stories in between.