From Bulbapedia, the community-driven Pokémon encyclopedia.
Kent (Japanese: ケント Kent) is a character of the day who appeared in A Cacturne for the Worse. He is a Pokémon Coordinator who competed in the Purika City Pokémon Contest with his Surskit.
During the first round, Kent was able to impress the Contest judges enough with his performance. As a result, he was one of the contestants to make it in to the Battle Stage. There, he was matched up against May but their battle ended in a loss for him, eliminating him from the competition.
This listing is of Kent's known Pokémon in the anime: