He is a former samurai with a toothbrush mustache, who was made a Zombie General. When he was alive, he single handedly killed 7000 pirates to save his own family. He is a relatively "fresh" zombie. He was made only a short while after the Straw Hat Pirates boarded Thriller Bark.
He had Zoro's shadow. He was able to hold down Nico Robin and Tony Tony Chopper], together with Inuppe. Even though no ego was left, he still couldn't get along with Inuppe, who has Sanji's shadow. They got in a fight over orders. Hogback unintentionally ordered both to jump out of the building. They obeyed his order.
His life force was eventually taken away when Moria stole the shadows of every zombie to become even more powerful.
His zombie number is 850.
His age at the time of his death was 59.