Big Hero 6: Secrets of the Planet is a upcoming film and the sequel of the 2014 film, Big Hero 6. This is part of the Crossover Cinematic Universe.
- Ryan Potter as Hiro Hamada
- Scott Adsit as Baymax
- Roger Craig Smith as Sonic the Hedgehog
- Jamie Chung as GoGo Tomago
- Laura Bailey as Blaze the Cat
- Damon Wayans, Jr. as Wasabi
- Genesis Rodriguez as Honey Lemon
- Kirk Thornton as Shadow the Hedgehog
- T.J. Miller as Fred
- Mike Pollock as Dr. Eggman
- Colleen Villard as Miles "Tails" Prower
- Travis Willingham as Knuckles the Echidna
- Quinton Flynn as Silver the Hedgehog
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