From Bulbapedia, the community-driven Pokémon encyclopedia.
Anthony (Japanese: Asoki) is a character of the day who appeared in the Pokémon anime. His English voice actress is Maddie Blaustein.
Anthony appeared in one episode of the Pokémon anime. In The Punchy Pokémon, he was training his Hitmonchan to compete in the P1 Grand Prix. He was so determined to train and win, he was neglecting his family. His daughter, Rebecca, convinced Ash and Brock to compete in the P1 Grand Prix to defeat her father.
Ash entered using his Primeape. Anthony noticed early on that the ape Pokémon was very strong. Anthony ended up losing to Team Rocket and the Hitmonlee they had stolen from Giant, another competitor. Eventually, Ash defeated Hitmonlee and won the P1 Grand Prix. Anthony offered to train Primeape for Ash, and Ash agreed. Anthony has not been seen since that episode.
This is a listing of Anthony's Pokémon in the anime.