Cavendish of the White Horse, also known as the “Pirate Prince”, is a famous Super Rookie and the captain of the Beautiful Pirates. He joined as a gladiator at the Corrida Colosseum to compete for the Mera Mera no Mi. After the final battle against Donquixote Doflamingo, Cavendish decided to pledge his loyalty to Monkey D. Luffy and became the captain of the first ship of the Straw Hat Grand Fleet.

He was formerly the prince of the Bourgeois Kingdom before he was exiled. He also suffers from a split personality, changing into a bloodthirsty lunatic known as Hakuba when his dominant personality sleeps. While initially antagonistic, he later becomes an ally of Luffy during the Dressrosa Arc, and one of the central characters from The Stories of the Self-Proclaimed Straw Hat Grand Fleet Cover Page Serial.

Cavendish is considered very attractive by both women and men, who often faint upon seeing him. His bright sky blue eyes are drawn in a style Oda usually uses for women. He is a lean yet muscular man with long, flowing blond hair that reaches just past his shoulders. He is fairly tall, standing at a height of 208 cm.

He wears a black cowboy hat with a large aqua blue colored plume. He sports a ruffled white v-neck shirt under a coat draped over his shoulders. His trousers are dark purple in the anime, but are dark purple and have a thin white stripe on the sides and end in a ruffle just below a pale yellow and aqua blue star on each knee in the anime. In the manga the stripes are orange. Each of his brown high-heeled boots have bronze buckles attached by dark purple straps just above each ankle. He carries his sword Durandal on his left side, as he is right-handed.