The Martian Manhunter, still in his One Year Later "conehead" form, attended Oliver Queen's bachelor party at the Hall of Justice. He was seen rapping with a Beast Boy who was so excited he covered his mouth with both hands. I'd be interested to know more about that, though I suspect from later seeing the former Changeling wiping his mouth with the back of his hand that it might have just been booze. Aquaman, by whom I mean the young Joseph Arthur Curry that began appearing as the Sword of Atlantis in this period, walked a few feet past the pair. Oberon, sadly, was far across the room.
J'Onn J'Onzz had no apparent contact with the Green Lantern Corpsmen in attendance. Guy Gardner pestered Red Tornado and Aquaman in turn, while Hal Jordan found John Stewart receptive to picking up his slack in service to the League.
During the shindig, Lex Luthor, Cheetah and the Joker continued amassing a super-villainous army at their Hall of Doom. Martian Manhunter foes in attendance included Gorilla Grodd, Effigy, and Doctor Light. Despero, Black Adam, and Mongul all showed up on a wraparound cover for Justice League of America #13, which was also turned into a poster, but that trio were absent from the actual story. Maybe those were the guys all the heroes who vanished at the end of the Special were fighting?
"Unlimited, Chapter 1: Injustice League" was by Dwayne McDuffie, Mike McKone and Andy Lanning.
You can read this story from different perspectives at the following blogs:
- Wonder Woman's involvement in The Wedding Special at Diana Prince
- Wonder Woman's continued adventure in JL of A #13-15 at Diana Prince
- Batman, Aquaman, Vixen & Zatanna's involvement in The Wedding Special at Justice League Detroit
- Batman and Vixen's continued adventure in JL of A #13-15 at Justice League Detroit
- Firestorm, Green Lantern John Stewart & Green Arrow related in the JL of A Wedding Special #1 at DC Bloodlines
- The Justice League in JL of A #13-15 at DC Bloodlines
- The Atom related cameos from the Wedding Special at Power of the Atom