Noboru "Alex Davis"

Alex Davis is a Pokémon Trainer and a character of the day who appeared in Power Play!. Announcing himself as "Alex Davis from Cherrygrove City", he challenged Gary Oak to a battle using his Alakazam. However, Gary was able to defeat Alex without much trouble. Ash, Misty, and Brock, who just walked nearby, saw the battle, leading to another encounter between Ash and his rival. (Source: Bulbapedia)