Story: "An Unrighteous World" (22 Pages)

Credits:

Stuart Moore (plot, script)
Jamal Igle (pencils)
Rob Stull and Prentis Rollins (inks)
Pat Brosseau (letters)
Paul Mounts (colors)
Harvey Richards (assistant edits)
Stephen Wacker (edits)

Feature Character:

Firestorm III (in Villains United #4 in between flashback and main story)

Supporting Characters:

Firestorm I (Martin Stein; in between issue #15 and #19) Doctor Kennedy (behind the scenes; next in Firestorm, the Nuclear Man Vol. 2 #29)
Gehenna (first appearance; last in flashback in Firestorm, the Nuclear Man Vol. 2 #31; in Villains United #4 in between flashback and main story; next in issue #19)

Villains:

Queen Bee I (last in Villains United #4; also in flahback in between JLA #40 and Villains United #4)
Black Adam (last in Villains United #4; next in ???)
Parasite III (last in Villains United #4; next in ???)
Jack of Spades
King of Spades
Queen of Spades
Ace of Spades (all four as the Royal Flush Gang; all four last in Villains United #4; next in ???)
H.I.V.E. II (last in Villains United #4; next in ???)
Syonide (last in ???; next in ???)
Amazo (in flashback in between issue #16 and Villains United #5)

Other Character:

Duc'at Falcara (first appearance; a wing commander of the Thanagarian Imperial Fleet)

Comment: Bannered as a Villains United Tie-In. Story continued from Villains United #4.