Story: "Resonance" (22 Pages)

Credits:

John Byrne (plot, script)
Ron Wagner (pencils)
Joe Rubinstein (inks)
Clem Robbins (letters)
Patricia Mulvihill (colors)
Paul Kupperberg (edits)

Feature Characters:

Superman (last in Superman: The Man of Steel #72; in Steel #43 in between pages)
Flash III (last in Wonder Woman Vol. 2 #125)
Green Lantern (Kyle Rayner; last in Green Lantern Vol. 3 #91)
Batman (last in ???)
Aquaman
Martian Manhunter (both last in JLA #10)
Captain Marvel (appearance same as panels in Power of Shazam! #31)
Cosmic Boy
Ferro (both last in Legion of Super-Heroes Vol. 4 #96)
Spark
Apparition
Ultra Boy (all three last in Supergirl Annual Vol. 3 #2; latter five as the Legion of Super-Heroes)
Orion
Highfather
Takion (all three last in Jack Kirby's Fourth World #7)
Starman VII (appearance same as panels in Starman #35)
Impulse
Max Mercury (both in between Impulse #29 and #30)
Jesse Quick (last in Impulse #26)
Huntress II (last in Green Lantern Vol. 3 #81)
Azrael II (last in Azrael #33)
Robin III (last in Batman Secret Files #1/2)
Nightwing (last in Nightwing Vol. 2 #11; next in issue #4)
Arsenal IV (last in Titans Secret Files #1/4)
Warrior (last in Steel #43)
Supergirl (last in Supergirl Annual Vol. 2 #2)
Superboy (last in flashback in Superboy and the Ravers #14)
Steel III (last in flashback in Steel #44)
Ray II
Captain Atom (both last in Total Justice #2)
Thunderhead II
Bonfire
Frostbite III
Junior (all four as the Young Heroes in between Young Heroes In Love #4 and #5)

Supporting Characters:

Perry White (last in Adventures of Superman #550; next in Steel #43)
Lois Lane (last in Superman: The Man of Steel #72; next in Steel #43)
Kitty Faulkner (last in ...)
Shade (appearance same as panels in Starman #35)
Mike Schorr
Donna Troy (both last in Wonder Woman Vol. 2 #125)

Villains:

Sonar II (last in Green Lantern Vol. 3 #79)
Joker
a group of bank robbers
Frank (dies)

Other Character:

Rebecca (first appearance; a citizen of Gateway City)