Trivia / Batman: The Doom That Came to Gotham

• Content Leak: The film was leaked two weeks before the official release.
• Role Reprise: The film has:
  • David Giuntoli as Batman from Batman: Soul of the Dragon
  • Brian George as Alfred from Batman: The Killing Joke and Batman vs. The Teenage Mutant Ninja Turtles
  • Jason Marsden as both Dick Grayson from the Scooby-Doo segment of "Bat-Mite Presents Batman's Strangest Cases!" from Batman: The Brave and the Bold and young Bruce Wayne from Beware the Batman
  • Navid Neghaban and Emily O'Brien as Ra's al Ghul and Talia al Ghul from Gotham Knights (2022)
  • William Salyers as Oswald Cobblepot from Batman: Return of the Caped Crusaders and Batman vs. Two-Face