Antonio is the first boss in the original Streets of Rage.
Antonio is a tall man with a comically oversized upper body with small legs, who carries a large boomerang which he throws from a distance. At close range, he resorts to using a front kick that will knock the player down. He currently holds the 3rd place title in the world boomerang rankings.
- Adam remarks in the remake how he, Axel and Blaze took him out a few years prior.
- He and his brother Fernando are believed to be the only Italian characters in the series.