Marshall D. Teach

Marshall D. Teach, commonly referred to as Blackbeard, is the Admiral of the Blackbeard Pirates and one of the Yonko who rule over the second half of the Grand Line, the New World. He was once a member of the Whitebeard Pirates' second division until he murdered Fourth Division commander, Thatch for the Yami Yami no Mi, and defected from the crew. He briefly held the position of Shichibukai after handing Ace over to the Marines before resigning upon returning from Impel Down with prisoners from Level Six.

Blackbeard is a middle-aged looking man with a massive build (his body is round with relatively thin limbs), a big mouth with several broken or missing teeth (though sometimes he does have a full set; whether this is an inconsistency error made by Oda or part of the story is unknown), a pronounced crooked nose and a very large and hairy chest and torso. Long, thick, woolly black hair falls down the back of his neck, underneath a black bandana, and a small scruffy black beard (hence his epithet) grows around his jawline. As the series progresses, his beard becomes longer and scruffier. He is extremely tall, being exactly twice Luffy's (pre-timeskip) height. At his first appearance in Mock Town, Teach wore an open buttoned white shirt with rolled up sleeves, green trousers with black line patterns, a yellow sash around his waist and classic black swashbuckler boots complete with large bronze buckles. During his raid on Banaro Island, he had added a large black and gold captain's coat over his attire, along with white beads on each wrist as bracelets and rings with gemstones on all of the fingers of both his hands (similar to his predecessor, Crocodile). At the Shichibukai meeting at the Marine Headquarters, he added a pair of necklaces of red as well as golden-yellow and blue beads to his dark orange sash and a traditional black tricorne hat over his grey bandana, as well as switching to a red shirt, while wearing his captain's coat like a cape. He also has three flintlocks and a flask tied to his sash around his waist. In the Volume 63 SBS Oda drew the Shichibukai as children. Teach is shown wearing a baseball cap with a rolled up long sleeve shirt and green shorts. He is also wearing black curled tip shoes, and unlike his usual cheerful expression, is crying for an unknown reason. After the time skip, Teach has grown a long beard that he has split into multiple sections, very much like his real life basis. He also wears a new hat with his Jolly Roger embroidered on it.

Blackbeard has become the first and, so far, only user to wield the powers of two Devil Fruits at the same time. Through unknown means, he acquired the extremely destructive powers of the Gura Gura no Mi from the dead body of Whitebeard and is now able to create earthquakes like his old captain. Marco speculated that this was possible due to an unstated peculiarity unique to Blackbeard himself, having to do with an "atypical body structure" of some sort. He also pointed out that the other Whitebeard Pirates should be aware of this fact. Teach also appears to be knowledgeable enough to know how to use the Gura Gura no Mi powers straight away after extracting it. With the power of darkness (Yami Yami no Mi), which "reduces anything to nothingness", and the power of quakes (Gura Gura no Mi), which "brings destruction to all", Blackbeard claims himself to be truly invincible and the strongest of them all. During the two years, the Blackbeard Pirates went on to hunt down powerful Devil Fruit users to kill them and absorb their abilities, thus Teach (and possibly his comrades) has likely added more abilities to his arsenal.