Christopher (Japanese: ツリオTsurio) is a character of the day who appeared in episode 218 of the original Pokemon series, Dueling Heroes.
He was the first of Ash's two opponents in the quarterfinal rounds of the Whirl Cup. He appeared to be an experienced Water Pokémon Trainer, as he had attached his Lure Ball to a fishing rod and released his Kingdra by casting the line.
Despite his efforts, Christopher failed to emerge victorious against Ash and his Totodile. Using Bite, Totodile blocked Kingdra from using a Hydro Pump attack. This caused the water to build up inside its body and it got sent flying once Totodile let it go. Ash proceeded to move on to his battle with Misty, while Christopher was eliminated from the competition.