Vitan

Vitan is an infamous New World pirate who allied himself with Whitebeard.

Appearance
Vitan appears to be a robot or a cyborg. His body appears to be made of iron or some other type of metal from the waist up. Leaving him with metal claw like arms

Abilities and Powers
Vitan is a fearsome pirate who has managed to achieve an infamous reputation in the New World, and to make an alliance with Whitebeard. Yet his abilities are unknown.

History
Some time prior to the current storyline, Vitan became a known pirate in the New World, and allied himself with Whitebeard.

Marineford Arc
When Portgas D. Ace was to be executed at Marineford, Vitan and his crew joined forces with the Whitebeard Pirates to save him.