Shijima

シジマ

Later, Chuck and Ash battled for a Storm Badge. Ash sent out Pikachu, who was defeated by Chuck's Poliwrath. Ash then used Bayleef, which defeated both Poliwrath and Machoke.
It was later revealed that Brawly, the Dewford Town Gym Leader, had formerly been one of Chuck's many students.
Manga: Chuck taught Blue martial arts and how to train Pokémon when the boy was very young.
He was initially training for a battle with Wayne in his first appearance. He then noticed something amiss when he found his sandbags and Wayne's jacket slashed, but then he met Suicune, and with help from Wayne. He figured out that it was the cause of the jacket and sandbags and attempted to catch it with Wayne, but to no avail as previous Gym Leaders such as Clair had tried to do.