Story: "The Extremist Vector, Part Two: Conquest" (22 Pages)

Credits:

Keith Giffen (plot, pencil layouts)
Gerard Jones (script)
Bart Sears (pencils)
Randy Elliot (inks)
Bob Lappan (letters)
Gene D'Angelo (colors)
Kevin Dooley (assistant edits)
Andrew Helfer (edits)

Feature Characters:

Captain Atom
Flash III
Elongated Man
Power Girl
Metamorpho
Rocket Red
Crimson Fox (Constance D'Aramis)

Guest Stars:

Blue Jay (also in flashback preceding Justice League of America #87, and in flashback in between Justice League of America #87 and flashback in Justice League #2)
Rocket Red Brigade

Supporting Characters:

Sue Dibny
Catherine Cobert
Rosa Rubikskova
Power Girl's cat (formerly "the cat"; last in issue #13; next in Justice League Europe Annual #1)

Villains:

Dreamslayer (also in flashback in between flashback in issue #18 and issue #15)
Lord Havok II
Gorgon II
Tracer II
Doctor Diehard II (all five as the Extremists)
Lord Havok
Gorgon
Tracer
Doctor Diehard (all four along with Dreamslayer as the original Extremists; all four die in flashback following flashback in issue #18)

Guest Appearances:

Silver Sorceress
Wandjina
Captain Speed (mistakenly called Johnny Quick in this story; all three in flashback preceding Justice League of America #87, and in flashback in between Justice League of America #87 and flashback in Justice League #2)
Bowman (first appearance; a member of the Assemblers; in flashback)