When The Lego Batman Movie hit theaters, it didn't just parody decades of caped crusader lore—it delivered one of the most star-packed, self-aware voice casts in animation history. If you're looking for the complete breakdown of who voiced your favorite plastic heroes, villains, and unexpected pop culture crossovers, you're in the right place.
The primary keyword behind this lineup is the Lego Batman movie cast, a voice ensemble that combined deadpan comedy veterans, dramatic heavyweights, and random internet favorites. Let's dive straight into the main players, supporting heroes, rogue gallery icons, and hidden voice cameos that you might have missed on your first watch.
The Core Heroes and Allies
Every dark knight needs a supporting crew, even if he spends the first act insisting he works alone. The primary heroic lineup leans heavily into comedic timing and dramatic contrast.
- Batman / Bruce Wayne (Will Arnett): Carrying over his scene-stealing performance from The Lego Movie, Arnett anchors the film with a gravelly, self-serious growl that mocks every live-action iteration from Christian Bale to Ben Affleck. His Bruce Wayne is a lonely, lobster-thermidor-eating eccentric who secretly just wants a family.
- Robin / Dick Grayson (Michael Cera): Cera brings an infectious, overly optimistic earnestness to the orphaned acrobat. Donning tear-away pirate pants and oversized glasses, his version of Robin treats Batman's abuse with blind, enthusiastic adoration.
- Batgirl / Barbara Gordon (Rosario Dawson): Dawson steps into the role of the newly minted police commissioner who wants to transition Gotham City's police force away from vigilante dependency. She matches Batman's tactical genius while rolling her eyes at his brooding ego.
- Alfred Pennyworth (Ralph Fiennes): Fiennes trades his usual dramatic gravitas for dry British wit, acting less like a traditional butler and more like a tough-love parental figure who isn't afraid to drop back-alley karate moves on his employer.
- The Batcomputer / 'Puter (Siri): Voiced uncredited by Apple's digital assistant technology in a brilliant meta-gag, the shipboard AI frequently roasts Batman's emotional fragility.
Gotham's Rogue Gallery
The villains in this brick-built universe aren't just threats to the city; they're emotional hurdles for a hero terrified of rejection.
- The Joker (Zach Galifianakis): Galifianakis reinvents the Clown Prince of Crime as a clingy, insecure ex-boyfriend. His entire villainous plot stems from Batman refusing to say "I hate you" back to him, turning a classic comic rivalry into a toxic breakup story.
- Harley Quinn (Jenny Slate): Slate voices a high-energy, roller-skating sidekick who joins the Joker's initial surrender squad. While she has fewer lines than her comic counterpart, she pops up frequently in the background chaos.
- The Riddler (Conan O'Brien): Late-night host Conan O'Brien steps into the green suit, delivering a wonderfully nerdy, desperate interpretation of Edward Nygma who constantly wants validation for his riddles.
- Two-Face (Billy Dee Williams): In a historic piece of casting, Williams finally plays Harvey Dent's villainous alter ego in a feature film, decades after portraying smooth-talking district attorney Harvey Dent in Tim Burton's 1989 Batman.
- Bane (Doug Benson): Parodying Tom Hardy's famous muffled voice from The Dark Knight Rises, Benson plays Bane with a high-pitched, helium-adjacent register that shouts "Bane!" constantly.
- Catwoman (Zoë Kravitz) and Poison Ivy (Riki Lindhome): Kravitz voices Selina Kyle (long before playing her in live-action alongside Robert Pattinson), while Lindhome handles Ivy as part of Gotham's assembled underworld.
The Phantom Zone Crossover Cast
The second half of the movie introduces a massive wave of public-domain and franchise villains from the Warner Bros. vault. If you wondered who voiced those random monsters, here is the breakdown:
- Lord Voldemort (Eddie Izzard): The Harry Potter villain acts as the primary muscle when the Joker raids the Phantom Zone.
- Sauron (Jemaine Clement): The Lord of the Rings dark lord speaks with Clement's signature deadpan comedic delivery.
- King Kong (Seth Green): The giant ape rounds out the primary monster trio with short, aggressive vocalizations.
- Other Phantom Zone Inhabitants: Listen closely and you'll hear references to Gremlins, Daleks from Doctor Who, Voldemort's Dementors, and the Wicked Witch of the West.
Hidden Gems and Cameos
Some of the best voice acting in the movie comes from quick background gags or Justice League members who show up just long enough to mock Batman's social isolation.
- Superman (Channing Tatum): Tatum plays the Man of Steel as an oblivious frat-boy alien who hosts exclusive Justice League anniversary parties that explicitly exclude Batman.
- Green Lantern (Jonah Hill): Hill returns from The Lego Movie to play Hal Jordan, serving mostly as a punchline for being left off the guest list.
- The Flash (Adam DeVine): DeVine brings manic energy to Barry Allen during brief league appearances.
- Mayor McCaskill (Mariah Carey): The iconic pop singer voices Gotham's upbeat mayor, who loves parties and completely supports Barbara Gordon's police reforms.
Frequently Asked Questions
Did Will Arnett voice Batman in other Lego projects?
Yes, Arnett reprised his iconic gravelly delivery across multiple franchise entries, including The Lego Movie (2014), The Lego Movie 2: The Second Part (2019), and various video game adaptations.
Why didn't Christian Bale or Ben Affleck voice Lego Batman?
Directors wanted a comedic, deeply satirical take on the character that contrasted sharply with the serious tone of modern live-action DC films. Will Arnett's pitch-perfect parody allowed the studio to lean fully into animated comedy.
Who voiced the computer system on the Batwing?
The shipboard computer system is credited as Siri, referencing the actual voice software integrated into Apple devices for several comedic conversational beats with Bruce Wayne.
Is Billy Dee Williams' appearance a nod to 1989 Batman?
Absolutely. Williams played Harvey Dent in Tim Burton's 1989 film but was replaced by Tommy Lee Jones in Batman Forever before ever getting to transform into Two-Face. This movie gave him his official chance to voice the character.
