Rackham's mother used to tell him that their family was originally from an Ancient Kingdom, he grew up listening to her and the secret legends about their ancestors. Legends full of blood.
He became a man with an estabilished position in the New World, especially in the Underworld. He started quite young, using his mechanical abilities to build weapons by himself and traffic them to the highest bidder, then over the time he extended his activities to bounty-hunting and contract-assassinations.
As time went by he began to carry out these activities less and less, thanks to his rewarding collaborations with two former Warlords: Crocodile and Doflamingo. He became a special and valued collaborator of Baroque Works, while not being in the official ranks: he handled sensitive activities in the New World in Crocodile's name. At the same time, he worked as a freelance "fixer" for Doflamingo: managing his logistics and overlooking Doflamingo's influencial nets in Paradise. Basically he worked as an important asset for the Boss of Baroque Works in the New World (since Crocodile operated in Paradise) and for the Head of the Don Quixote Family in Paradise (since Doflamingo had his hands full in the New World).
Obviously, the fall of Crocodile 2 years ago, Doflamingo's recently, had a huge impact on his business, forcing him to go back to his old ways. But his eye has caught the birth of Cross Guild, and the bounties on the Marines head, with particular attention and interest...
Rackham is almost 40 years old, dark blonde, with a scar on his head. He usually wears a red linen shirt (similar to the one Luffy was wearing when he returned to Sabaody) with an oversize black leather jacket on top, black pants and a green sash around the hips. Around his neck, he always has a silver chain with an ancient medal his mother gifted him when he was a kid.
- For his high-level criminal career, the World Governament put a bounty of 1,370,000,000 on Rackham's head.
- He ate the Nagi Nagi Devil Fruit (formerly Rocinante's) making him a Silent Man, perfect for his Underworld activities.
- Tucked into his sash, he always carries a gun (named "Sentenza") and a knife (named "Rubra"), both of which he built and improved over time with his own hands
- He uses basic Observation Haki (sensing) and Conqueror Haki (domination/incapacitation) but is particularly skilled in Armament Haki, being able of hardening (even fullbody, like Vergo), imbuement and emission (Wano's Ryo)
- Part of the infamy he accumulated over the years comes from the murder of some Cipher Pol agents, during which he learned to use 3 of the 6 Rokushiki: Soro, Geppo and Rankyaku
Rackham's hideout is in Paradise in the island of St. Circe: a Mediterranean-style island, where legends say the sorceress Circe used to live hundreds of years ago, possibly during the Void Century. Unlike his business parterns, Doflamingo and Crocodile, he sincerely loves this island and even protects it when belligerant pirates make port.