He has spiky white hair with dark roots and shaved sides, dark eyes, and gold-framed sunglasses featuring a visibly bent lens. He wears black hoodie or jacket with white zigzag lines, a plain white t-shirt underneath, baggy black pants with white "X" marks below the knees, plain white sneakers, a gold watch on his left wrist, black-and-white bracelets on his right wrist, and a pendant necklace bearing the yellow Team Skull logo. He has a purple Team Skull skull-and-crossbones tattoo on his left forearm. He is basically a bully, since he is boastful, disrespectful of authority, and actively tries to demolish other trainers' dreams to prove he is the strongest. He often acts laid-back, slouching, and blowing off serious situations, though this nonchalance easily turns into extreme frustration and erratic behavior when he loses. Beneath his loud and violent exterior, he suffers from a lack of confidence and a desperate desire to be taken seriously. But he also tends to be comedic. And deep down, he's nice and not as bad as he sees. He's a Bug Type specialist, with his main team being Golisopod (A Bug/Water type that's his ace pokémon), Ariados (a Bug/Poison type), Masquerain (a Bug/Flying type), Pinsir (a Bug type), and Scizor (a Bug/Steel type). Early on, Guzma and Kukui trained under Kahuna Hala. While Kukui moved past his failures to conceptualize the Pokémon League, Guzma internalized his defeats as proof that he was inadequate, fueling his bitter and destructive personality. He was also beaten by his father with golf clubs when he was young. When he grew up, he retaliated against his father and ran away to make Team Skull. Even though Team Skull is technically a gang, he took in neglected and troubled youths, providing them with a community and acting as a mentor figure.