Who's-Who

Who's Who is a member of the Beasts Pirates, being one of the six strongest Headliners known as the Tobiroppo.

Appearance
Who's Who is a tall man with notably long legs. He has a large mane of wild light hair that goes down to his waist. He wears a dark mask over the top of his head down to his nose that obscures his eyes, and has two long, dark upward-curving horns protruding from the side of his head. He wears a dark jacket that exposes his bare chest, which has a large tattoo on it, and also wears dark pants and shoes. In his first appearance, he was shown smoking a cigarette.

Personality
Who's Who seems to be a blunt man who gets annoyed easily, as shown when he quickly became annoyed at Ulti and Page One squabbling. When Ulti wished death on Queen, Who's Who quickly brought up the question of which Tobiroppo would be promoted to an All-Star to succeed him. He seems to heavily respect Kaido, as he along with the other Tobiroppo members became serious and shocked when Ulti spoke rudely about Kaido.

Abilities and Powers
As a member of the Tobiroppo, Who's Who is considered one of the most powerful Headliners in the Beasts Pirates, with only Kaido and the All-Stars ranking above him.

Wano Country Arc
Who's Who and the other Tobiroppo members arrived at Onigashima during the Fire Festival. Kaido had them brought into his fortress, where they waited for him. Ulti expressed her desire for Queen to die, and Who's Who wondered which of them would take his spot if that happened. When this discussion caused Ulti and Page One to start arguing, Who's Who told them to be quiet. Ulti then insulted Kaido as they awaited the meeting, causing the other Tobiroppo to rebuke her.