Antonio

Antonio is a large grey hulking brute with little intelligence, who is Sunny's ex-boyfriend. He is overprotective of her and always talks in third person. He is Ester's current boyfriend.

Appearance
Antonio looks like a troll with elf like ears, long hair and bushy eye brows and wear a black brief, making him look like a caveman as well. He has some minor similarities with Humungousaur, both are huge, bulky and very strong.

In Omniverse he is now wearing a motorcyle outfit.

Ultimate Alien
After Sunny was sent to Earth to live with her aunt for the summer (because of her relationship with Antonio, who apparently has a record), Antonio followed her and took Sunny on a night out in town, with himself as their mode of transportation. Sunny immediately rescheduled their plans when Sunny learned that there were more Dimension 12 robots. With Sunny and Antonio's help, they were easily able to defeat the robots, however Antonio nearly set off the bomb when he mistook it for one of the robots and thus began trying to smash it.

When Gwen decided to send Sunny home, both Sunny and Antonio immediately began fighting the team, while Gwen fought Sunny, Antonio fought Humungousaur, when he proved stronger than even Humungousaur, Ben went Ultimate Humungousaur. Ben was able to trick Antonio into zap himself with electricity when he tore out a active light pole. After the fight, Antonio was taken back to his home world by Verdona to allow his parents to decide on his punishment.

Omniverse
In The Most Dangerous Game Show, it was revealed that Antonio has been going out with Ester.

Powers and Abilities
Antonio possesses great strength which is enough to easily defeat a group of robots from Dimension 12 and easily overpower Humungousaur.

Weaknesses
Antonio is all brawn but no brains and can be easily tricked by anyone.

Ben 10: Ultimate Alien

 * Girl Trouble (first appearance)

Ben 10: Omniverse

 * The Most Dangerous Game Show (first re-appearance)

Trivia

 * According to Derrick J. Wyatt:
 * Antonio and Sunny have broken up.
 * Antonio often says he fights for love when fighting.