Marlon

Marlon is the Gym Leader of Humilau City in the Unova region, specializing in Water-type Pokémon. He appears in the anime during Pokémon the Series: Black & White (specifically in the episode "The Road to Humilau!").

In the anime version, he's portrayed as a laid-back, friendly, and energetic guy with a strong connection to the sea—he's often seen swimming or surfing around. He helps guide Ash and Cameron to his Gym when they get lost and battles Cameron for the final Unova League Badge.

Physically, he's a tall, athletic man with wild deep blue hair (a large strand arching over his head), light blue eyes, tanned skin, and he wears swimming goggles around his neck. He goes shirtless, fitting his water-loving, carefree beach vibe. His known Pokémon in the anime include Jellicent, Mantine, and Wailord (used for transport).

Overall, he's a chill, big-hearted surfer-type character who embodies a relaxed coastal lifestyle.