Story: "A Halo of Flies" (23 Pages)

Credits:

Alan Moore (plot, script)
Stephen R. Bissette (pencils)
Alfredo Alcala (inks)
John Costanza (letters)
Tatjana Wood (colors)
Karen Berger (edits)

Feature Character:

Swamp Thing

Supporting Character:

Abby Cable (dies)
Matt Cable (body possessed by Arcane)

Villains:

Anton Arcane (also in flashback in between issue #25 and #27)
Erik Loveday
Gus Prickett
Betty Montclair
Sally Parks
Mark Newell
Floronic Man
Joker
Two-Face (latter behind the scenes)

Guest Appearances:

Monitor (last in Superman Vol. 1 #402)
Lyta (last in All-Star Squadron #50)

Other Characters:

Jody Herbert
Tina-Louise Pierce
Rickie Patterson
Hattie Duplantis
Doreen Duplantis (Hattie's sister; dies)
Cheryl Williams
Loni Williams (first appearance of all)