Story: "Mutants" (22 Pages)

Credits:

Doug Moench (plot, script)
Mark D. Bright (pencils)
Romeo Tanghal (inks)
John Costanza and Albert DeGuzman (letters)
Nansi Hoolahan (colors)
Kevin Dooley (edits)

Feature Character:

Mister Miracle II (last in Justice League America #42; next in New Gods Vol. 2 #18)

Supporting Characters:

Oberon (last in last in Justice League America #42; next in Justice League America Annual #4)
Big Barda (last in Justice League America #42)
Kathy Ferbel (in between issue #16 and #21)
Andy
Wally (both next in issue #21)

Villains:

Darkseid (next in ???)
Robert Gashe
Mr. Cutler

Guest Appearances:

Blue Beetle II (last in Justice League America #42; next in Justice League Europe Annual #1)
Booster Gold (last in Justice League America #40; next in Justice League Quarterly #1)

Other Characters:

Sylvia Pike (first appearance; a reporter)
Captain Naters (first appearance; a police officer)