Height: 191 cm (6'3")
Affiliation: Heart Pirates, Ninja-Pirate-Mink-Samurai Alliance, Shichibukai (Former), Donquixote Pirates (Former)
Devil Fruit: Ope Ope no Mi (Op-Op Fruit)
Devil Fruit Type: Paramecia
Bounty: 3,000,000,000 (previously; 200,000,000, 440,000,000, and 500,000,000)

Trafalgar Law is the captain of the Heart Pirates​, a pirate crew from the North Blue. He is one of eleven pirates who has been referred to as "The Eleven Supernovas" on Sabaody Archipelago whose bounties are higher than 100,000,000 when the Straw Hats arrive in the place.

Law is an extremely laid-back character, who is nearly always seen smiling (although not with a huge grin, like fellow Supernova Urouge). He also has a more reckless attitude when faced against other pirates that the World Government has labeled as a higher threat: For example, he casually asked X. Drake how many people he had slain in his very first appearance, and had no qualms about flipping his middle finger at Eustass Kid, the most wanted Supernova on the Archipelago (even smiling defiantly when doing so). However, he hates being ordered around. He is also unfailingly polite, usually referring to others as "Mr", and appears to be honorable enough to refuse taking credit that is due to others.