From Bulbapedia, the community-driven Pokémon encyclopedia.
Howie (Japanese: ヒロヲ Hiro'o) is a character of the day who appeared in The Ole' Berate and Switch!.
He was the first Trainer that Ash and his Corphish battled in the tournament in Pewter City. The tournament was actually a scam that Team Rocket agents Butch and Cassidy planned the whole time.
Howie's Pinsir battled well and used Vice Grip, Guillotine and Seismic Toss to weaken Corphish, but when his second Guillotine failed due to Corphish using Harden and then Bubble Beam, he lost.