The Grim Adventures of Billy and Mandy Wiki
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The Grim Adventures of Billy and Mandy Wiki


Dr. Brainiac is one of Billy's toys. However he was brought to life by aliens that live on the moon, ever since then he wants to take over the world. He works with an alien bug namedStinky, they met when Billy put Dr. Brainiac on Stinky to save him from the moon aliens.

Trivia

  • He slightly resembles Dr. Animo from Ben 10 (before Alien force)

Gallery

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