Ben 10: Top Baddies

 Plot

Ben learns five villains form the Null Void have escaped and seek to get Kevin back into crime.

At the end of the episode, Ben gained new heroes from scanning the villains.

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Main Charaters

 * Ben Tennyson (voiced by Yuri Lowenthal): Hero of the Ultimatrix.
 * Gwen Tennyson (voiced by Ashley Johnson): Ben's cousin and Manacaster
 * Kevin E. Levin (voiced by Greg Cipes): Gwen's boyfriend, Ben's old rival and best friend.


 * Minor Characters
 * Magister Iron (voiced by John DiMaggio): An Arburian Pelarota (Cannonbolt's species) that sent to help Ben team and capture the loose criminals.
 * Nuckles: A slim teenaged Tetramand rookie that is skilled in hand-to-hand combat and tougher than Rath. She is the strong on the team.
 * Viserip: A Ripjaws-like teenager that carries oxygen pills and looked more like the original series version.

Villain


 * Grin Mark (voiced by Jeff Bennet): A jester-like alien that has cartoonish abillties like makin his hand big, flatted his body and other looney tune antics. He mention that Zombozo is best friend and he is the crazy one of his race. His plan to get Kevin back in the bad side and have some destructive fun, he is the last to scanned by Ben and leader of the gang.
 * Kat Purrlins (voiced by Hilary & Haley Duff): A cat-like humanoid alien with two heads and sing with a hypnotic voice and Kevin is scared of her. She likes to talk about how beautiful she is, while singing. Her favortic tactic is hypnotize prey and crushed with her tail. Also, hynotized by eye contacted and her eyes turn into swirly circles. The first head has short bob-cut black hair with bangs that cover half her face and the second has blond hair with blue bow.
 * Boom Rox: He is hip-hop alien that is species as Sonic Singer and plans to make Kevin pay for setting him up. He carries a microphone and able to defeat Echo Echo and Ultimate Spidermonkey. Also, produce sonic blast from his hands and break dance while dancing.
 * Gorg: He starting out as slim alien with yellow eyes and wearing a black mask. When enraged, he turn into a red/black musclar like-alien that is strong to defeat Humongosaur and create seismic quakes.
 * Dupe Willy: An hillbilly alien that can create clones and weapons out of trash or broken machines, he seem to the same age as Ben.

Alien Used

 * Shocksquatch
 * Ditto (first appearancce since original series, 2x)
 * Sonic Singer
 * Echo Echo
 * Ultimat Spidermonkey
 * Humongosaur
 * Rath
 * Hypnotic Cat (scanned and debut)
 * Looney Dude (scanned and debut)
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