• English / United States: Mandarin Island Trainer
• Japanese / Japan: キンカン島教師
• Japanese (Romanized) / Japan: Kinkan Island Kyōshi
• Japanese (TL) / Japan: Kinkan Island Teacher

An unamed trainer who was traveling on Mandarin Island when Ash Ketchum challenged him to a Pokémon battle. Among his Pokémon are a Tauros and a highly experienced Persian that knows Thunderbolt.

During his battle with Ash Ketchum, Squirtle managed to defeat Persian with a Skull bash after enduring its Thunderbolt. The trainer then used Tauros who quickly defeated Squirtle but lost to Charizard's Flamerthrower even though it used Take Down on it first.