left unsolved. It debuted May 2021 in digital format and then physically released in July of the same year. The series is written by J. M. DeMatteis and James Tucker and illustrated by Ethan Beavers. Batman Beyond and the Beyond universe Batman Beyond also received a number of ongoing series and miniseries related to the TV series. Due to the popularity of the Batman Beyond concept, numerous tie-ins and cameos were created as a bridge between the DC Animated Universe and the DC Universe. Since 2012, DC Comics publishes three weekly digital series related to Batman Beyond and prints them monthly as Batman Beyond Unlimited. Additional characters While the Justice League and Justice League Unlimited comics did use many characters from the DC Universe, some characters never made it to the screen. Those that did not appear in the television series are listed below: Heroes Adam Strange Justice League Adventures #25-26 Justice League Unlimited #4 Was to appear in the Justice League Unlimited episode "Hunter's Moon" (originally titled "Mystery in Space", after the title of the comic Adam appeared in), but the character was off-limits to the creative team due to legal issues. Alan Scott (Green Lantern) Adventures in the DC Universe #4 Justice League Adventures #20 (cameo) Justice League Unlimited #40 He, along with the rest of the Justice Society of America, was to originally appear in the Justice League episode "Legends". The appearance was rejected because their portrayal was too similar to their Golden Age appearance, thus an analogue group (the Justice Guild of America) was created. Alec Holland Batman Adventures (vol. 2) #16 Animal Man Justice League Unlimited #29 Atlanna Black Lightning Justice League Unlimited #15, 27 Usage of the character (outside of the comic books) would have required paying royalties to Tony Isabella. Blue Beetle Adventures in the DC Universe #8 Justice League Unlimited #5, 20, 43 The rights to the character were unavailable due to the 1940s radio show of the same name. Connor Hawke (Green Arrow) Adventures in the DC Universe #13, 16 Detective Chimp Justice League Unlimited #39 Doctor Occult Justice League Unlimited #14 Firestorm Justice League Unlimited #3, 8, 16 Was to be the main character of the Justice League Unlimited episode "The Greatest Story Never Told". Freedom Fighters: Uncle Sam, Doll Man, the Human Bomb, the Phantom Lady, the Ray, and the Black Condor Justice League Unlimited #17 Guy Gardner Adventures