Lt. Surge (Japanese: マチス Matis) is the Gym Leader of Vermilion City's Gym, known officially as the Vermilion Gym. He hands out the Thunder Badgeto Trainers who defeat him. He specializes in Electric-type Pokémon
Lt. Surge is an extremely large and muscular man, and seems to be the show's tallest human character. He is arrogant, loud, and crude, and refers to all Trainers as "babies" until they manage to defeat him. Lt. Surge generally looks down on unevolved Pokémon, preferring to evolve them as soon as possible, though he was proven wrong when Pikachumanaged to defeat him. He also seems to be an extremely brutal battler, as nearly every Trainer that faced him ended up with their Pokémon seriously injured, including Pikachu during his first attempt, resulting in at least 17 Surge-related ER visits within a single month before Surge was defeated on the second attempt, including Pikachu.
His Raichu shares many of his personality traits, also appearing to be rather tough. Lt. Surge's main weakness was that he evolved his Pikachu into a Raichu too quickly without taking the time to teach it speedy attacks. Even though he managed to defeat Ash and his Pikachu once with pure power, Pikachu was able to use speed-altering moves like Agility to get the best of Raichu and defeat it, making Lt. Surge the first Gym Leader Ash actually beats in battle and not just receiving the Gym Badge out of gratitude