By now, it should be clear that when it comes to comic book deep cuts, Peacemaker Season 2 isn’t messing around. And one very under-the-radar reference in Episode 1 is a call-back to one of the first and strangest DC supervillains ever. In Action Comics #13, dated June 1939, Superman encounters a villain presented as the opposite of the Man of Steel: the Ultra-Humanite. It’s possible that Peacemaker Season 2 has introduced its own version of Earth Two into the newly rebooted DCU. In the comics, Earth Two was eventually combined with other dimensions in the famous Crisis on Infinite Earths miniseries from 1985 to 1986.