Sonic the Hedgehog vs. Teenage Mutant Ninja Turtles vs. Advancimals (TV Series)

Sonic the Hedgehog vs. Teenage Mutant Ninja Turtles vs. Advancimals (or STH vs. TMNT vs. Advancimals for short) is an upcoming American-French-Japanese animated superhero television series.

This series is also a spinoff of The Epic Tales of Captain Underpants, featuring the Advancimals.

Team Sonic

 * Sonic the Hedgehog is a fast mutant blue hedgehog and the fastest animal superhero in the world.
 * Miles "Tails" Prower is a two-tailed mutant fox and Sonic's sidekick
 * Knuckles
 * Amy Rose
 * Rouge the Bat is a former member of Team Dark and Knuckles' girlfriend.

Team Turtle

 * Leonardo "Leo" is the leader of the ninja turtles. He speaks with a New York accent.
 * Raphael "Raph"

Cast

 * Roger Craig Smith as Sonic the Hedgehog, Various
 * Colleen O'Shaughnessey as Miles "Tails" Prower
 * Travis Willingham as Knuckles
 * Cindy Robinson as Amy Rose
 * TBA
 * TBA as Leonardo
 * Sean Astin as Raphael
 * TBA as Donatello
 * Greg Cipes as Michelangelo
 * Richard Steven Horvitz as Smartaconda
 * John DiMaggio as Buff
 * Tara Strong as Scrape
 * Eric Bauza as Master Splinter, Omega
 * Mike Pollock as Dr. Eggman
 * TBA as Shadow the Hedgehog
 * Dee Bradley Baker as Mr. Pink the Rabbit