Story: "Memories of Krypton's Past" (48 Pages)

Credits:

George Perez and Roger Stern (plot, script)
George Perez and Mike Mignola and Curt Swan (pencils)
John Statema and George Perez and Brett Breeding (inks)
Bill Oakley (letters)
Glenn Whitmore (colors)
Michael Carlin (edits)

Feature Character:

Superman (last in Adventures of Superman #454; next in Superman Vol. 2 #32)

Supporting Characters:

Jor-El
Kelex
Lara (all three in between pages of World of Krypton Vol. 2 #4)

Villains:

Mongul (last in Adventures of Superman #454; next in Superman Vol. 2 #32)
Kaargl (first appearance; a Warworld gladiator)

Other Characters:

Cellkeeper 385 (first appearance; a prisoner of Warworld; next in Superman Vol. 2 #32)
Cleric (first appearance; also in flashback preceding flashback in Superman/Aliens #3; next in Superman Vol. 2 #32)
Gladiator Attendant Lentra (first appearance; a prisoner of Warworld)
Sen-M the Elder
the League of Life (both in flashback preceding World of Krypton Vol. 2 #2)
Syra (a regulator of the Council's Robot Data-Banks; dies)
Tyr-N (first appearance of both; followers of the League of Life; both in flashback)
The Eradicator (first appearance; a Kryptonian device of destruction; later becomes sentient and takes humanoid form; next in Superman Vol. 2 #32)

Comment:

This issue also includes Who's Who profiles on Matrix and Cat Grant, both with pencils by Dan Jurgens and Brett Breeding.