The smart-mouthed group of street kids who first mock the reserve Justice Leaguers and later assist them are not named as such, but are dead ringers for DC's Newsboy Legion.
General Wade Eiling's brutish persona is never officially named, but it is similar in appearance and ability to when he transferred his mind into the body of the Shaggy Man, an indestructible brute who first fought the original Justice League of America in the 1960s and would reappear sporadically in subsequent years, and shaved its body, renaming himself "The General".
The seven Justice Leaguers taking part in the parade represent The Seven Soldiers of Victory, a classic DC Comics team of the Golden Age. The first version of this team featured Shining Knight, Vigilante, the Star-Spangled Kid, Stripesy, Green Arrow, Speedy, and the Crimson Avenger. Stripesy would eventually become S.T.R.I.P.E., but since the Star-Spangled Kid has not been depicted in the DCAU, he is replaced here with the natural inclusion of Stargirl, who went by the name Star-Spangled Kid for a while in the comics.
The description used for the super-soldier, "Nothing less than an artillery shell will be able to penetrate his skin", originally appeared in one of the earliest Superman comic-books.
Among the viewers, Al and Chris McGee from "In Blackest Night" can be seen.