Screwed by the Network: See, after the Silver Age sci-fi reboot of the characters in the 50's, kids were assured that the Golden Age superheroes were still actively having adventures in the alternate universe of Earth-2, which thanks to dimensional differences was a different time from Earth-1, usually a couple decades back. This allowed DC creators in the 80's to use Earth-2 in the 80's as a What If? where time was allowed to pass normally, unlike in Earth-1. What if Golden Age Batman and Catwoman had a child? That child would grow up to be Huntress. Golden Age Wonder Woman and Steve Trevor had a bouncing baby Fury. Golden Age Hawkman and Shiera = Hector Hall and so forth. The series even had legacy heroes who weren't related to their forebears, and redeeming replacements for Golden Age villains. Everything was set to be a love letter to the past and a gateway to the future of comics. Then some bright spark at DC decided that Viewers Are Morons and the Crisis on infinite Earths happened. The new, unified Earth had the JSA and the JLA existing in the same timeline, with the JSA taking place in the forties, and no Golden Age versions of heroes. This led to people making current series taking place in Earth-2, like this one, hurriedly having to cobble together new backstories for their characters, rewriting storylines, etc. and things fell apart. Fortunately DC learned their lesson and never did anything like the Crisis again and again and again...! (In all seriousness, the majority of the characters featured in Infinite Inc would go on to become members of the JLA like Atom Smasher or would graduate to the JSA in JSA (1999) with little to no confusion in terms of backstory.)
There was initially going to be a character called Harlequin (after the original Green Lantern villain-turned-heroine) who was to be DC's first openly gay character, but he was scrapped because there were already two GL-related characters and the roster was getting crowded. The new Harlequin character ended up as a villain who was part of the Wizard's Injustice Unlimited team. The original Harlequin later married Green Lantern. (Neither should be confused with Harley Quinn.) As of 2022, the male Harlequin design is now being used for DC's The New Golden Age event and given the official name "The Harlequin's Son." The character is said to be a previously unknown Golden Age figure who was apparently pulled out of time, and appears to be the son of Molly Mayne.
The ending of Peter Milligan's series initially had nothing to do with Sean McKeever'sTerror Titans miniseries, only for Sean to learn halfway through writing the mini that Infinity Inc.'s last issue announced the characters would appear in Terror Titans.
