Brainiac (voiced by Corey Burton) was the planetary-wide supercomputer of Krypton until it left shortly before the planet's destruction.
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- Brainiac becomes defeated for good in Jeffrey, Jaden & Friends' Storm Adventures of Justice League Unlimited - Divided We Fall.
- Brainiac will become Darkblade and the Eds' enemy in The Eds' Adventures of Justice League and The Eds' Adventures of Justice League Unlimited.
- Brainiac will become Aaron's enemy in Aaron, & Friends Meet The Justice League, & Aaron, & Friends Meet Justice League Unlimited.