- The show's creators mention that they created a replica of this show's version of the utility belt out of cardboard, to test and see how it would work in motion.
- Executive Meddling: The Aurora, CO shooting in summer 2012 prompted WB executives to demand that the guns be rendered in more of a sci-fi style.
- I Knew It!: Some connected the dots between Dane Lisslow and Deathstroke early, considering Dane and Bruce had so much in common, and Deathstroke had both of his eyes.
- Invisible Advertising: This show and Teen Titans Go! replaced the previous DC Nation, but you wouldn't have known that from the total lack of advertising for this show, which had been mostly been shown to the public through press releases alone until a few weeks prior to the premiere. Teen Titans Go!, on the other hand, has been given lots of advertising weeks before it premiered and technically airs in a primetime slot with reruns on DC Nation.
- Network to the Rescue: The show moved to Toonami on May 10th, where it aired all 26 of its episodes before CN executives wrote off the series as a finantial failure and forbade reruns.
- No Export for You: Despite having its Latin American dub for all 26 episodes, has not aired in Latin America. At least the DVD releases in US (Region 1), Mexico (Regions 1 and 4) and Argentina (Region 4) include this dub.
- Playing Against Type:
- As with The Federation President, Henry Langston and Shyir Rev, we have Kurtwood Smith playing a much nicer character than he usually plays. Like the latter two, we also have Smith playing a better father than Red Forman and Mr. Perry. He's playing one of the most famous cops in fiction, whereas one of Smith's more famous roles was Clarence Boddicker.
- It's incredibly unsettling listening to Anarky knowing he was once Andy French.
- Role Reprise:
- Tara Strong voices Barbara Gordon, reprising her voicing of the character in the DCAU.
- In the French dub, several voice actors from previous adaptations reprised their roles here:
- From the DC Animated Universe: Jean-Claude Sachot as Lieutenant/Commissioner Gordon and Philippe Peythieu as Man-Bat/Kirk Langstrom.
- From The Batman: In addition to Gordon, Adrien Antoine as Batman/Bruce Wayne, Chantal Baroin as Oracle/Barbara Gordon, and Thierry Murzeau as Killer Croc.
- From Batman: The Brave and the Bold: In addition to Batman, Oracle, and Killer Croc, Jean-Claude Donda as Ras Al Ghul.
- From Batman: Arkham City: In addition to Batman and Gordon, Jérôme Pauwels as Harvey Dent.
- Screwed by the Network: The Invisible Advertising and erratic scheduling after the first few weeks were bad enough. Then it was pulled from the schedule altogether and left in limbo for months with no official word from Cartoon Network about the show's fate. Cast members assured that it would return in early 2014, and even that changed as their promised dates came and went. Keep in mind the episodes had already all been produced; they were airing in New Zealand this whole time and some of the episodes were released on DVD before they had ever aired in the states; Cartoon Network just outright refused to air the show or even comment on its ongoing status one way or the other. Eventually Toonami came to the rescue...
- But even Toonami rescuing the show was in vain. Cartoon Network wrote off the show financially, preventing it from airing on Toonami ever again. At least Toonami kept to their word and gave the show a 7-episode marathon so that it could at least reach its conclusion.
- Given the climate of entertainment today, where comic book adaptations are some of the hottest properties around, the fact that Cartoon Network either could not or would not make a killing off a Batman show is mind-boggling. Batman is the single best-selling comic book there is, and has already had four successful television adaptations going back to the 1960s— to say nothing of his films and video games. Batman prints money, he's the very definition of a cash cow, to the point where DC's basic marketing strategy sometimes feels like "Make everything as similar to Batman as possible." There are no words, basically, for how hard you have to try to not have a successful Batman adaptation. Even the Toonami promos for the above-mentioned 7-episode finale marathon seemed to highlight the ridiculousness of the situation, ending with a very telling quote from the show:It wasn't supposed to end like this.
- Short Run in Peru: During the late 2013-early 2014 hiatus, new episodes continued to air in New Zealand, of all places.
- Too Soon: The series was re-edited to have less realistic fire-arms following the tragedy in Aurora, Colorado.
- What Could Have Been:
- The Creeper was at one point considered to be in the show. Villains such as Mad Hatter, Nocturna, and Hush were also considered, with the last one being replaced by a similar villain (likely Deathstroke, due to borrowing characteristics from Hush).
- There were considerations to do a show centered around Superman and Batman that went through at least two different forms (one was dark and apparently kind of like Escape from New York, while the other focused on Batman and Superman living together, as well as being much lighter than what the show would become). The latter was also going to feature Wonder Woman and a relationship between the three. (around the 23:40 mark).
- In an interview, the show's creators commented that it would be focused more on Bruce Wayne, and would show "the three faces of Bruce": the millionaire playboy; the paranoid shut-in; and Batman, the moderator between the two sides.
- The tie-in comic book would've featured Metamorpho◊ in a future issue before cancellation.
- Designer Shane Glines actually had concept art ready for Two-Face.
Trivia / Beware the Batman