Chuck is best known as the Fighting-type Gym Leader of Cianwood City, though he's gained a reputation for being surprisingly out of shape despite his mastery of martial arts—something his wife never lets him forget. He's emotional and prone to crying when he gets worked up, but his positive attitude keeps him going.
His training philosophy centers on battling alongside his Pokémon to sharpen their focus. When Ash challenged him for the Storm Badge, Chuck's Poliwrath took down Pikachu, but Ash's Bayleef managed to sweep both Poliwrath and Machoke to claim victory. Interestingly, Brawly, who would later become the Dewford Town Gym Leader, was once among Chuck's many students.
In the anime, Chuck only appeared in "Machoke, Machoke Man!" roughhousing with his Pokémon when Ash and friends found him. His battle with Ash served as the episode's main event.
The manga shows a different side of him—he trained a young Blue in martial arts and Pokémon training early on. He was also caught up in an incident involving Suicune, whose rampage had slashed his sandbags and damaged Wayne's jacket. Though he and Wayne teamed up to catch the legendary beast, they couldn't manage it, joining a long line of Gym Leaders like Clair who'd attempted the same.
Content compiled by AnimeList.moe from publicly available sources.