Jack the Drought is a giant grouper fish-man , [5] an All-Star of the Beasts Pirates as one of Kaidou 's three closest confidants , and captain of the Mammoth , prior to its destruction. He was first briefly mentioned when being notified of Caesar Clown 's capture by viewers of Caesar's broadcast of the Punk Hazard incident.
Jack is a giant grouper fish-man of massive stature, dwarfing his crewmates and standing taller than even his governor-general Kaidou. While still being immensely muscular, Jack's limbs are disproportionately small when compared to his enormous torso though their size is greatly increased in the anime, especially his arms. He wears a metallic jaw mask that seemingly disappears when he transforms into his mammoth form, and has a pair of horns on each side of his head. His blond hair is worn in a ponytail and a pair of long braids.
He wears a light brown darker in the anime sleeveless feathery coat similar to Kaidou with spiked pauldrons on his shoulders, circled by a belt bearing his crew's Jolly Roger. He has bloodshot orange eyes and a veined forehead. Jack is violent and short-tempered, as one of his subordinates worried how Jack would react once he learned about Caesar 's downfall.
Those who have witnessed Jack's personality in person describe these traits as madness. He is also extremely sadistic, willing to torture enemies in order to get what he wants. He is barbaric and brutal to the point of hacking off limbs and creating terrible bloodshed, [21] only ceasing his carnage when he has more urgent matters to attend to. He is extremely stubborn and unreasonable. When the minks tried to tell him that Raizo was not on Zou , Jack refused to listen to or believe them, [25] and continued to refuse when Inuarashi offered to let him search the island without any resistance to see for himself.
He is not above fighting dirty in order to achieve his goals, as he brought in Caesar's gas weapon, Koro , to annihilate Zou after the minks put up a formidable fight against his forces, simply because he was losing his patience and not because he was in any actual danger of losing. Upon his return to Zou, he decided to outright kill Zunesha , the elephant carrying Zou, to destroy the country in the quickest way he could and avoid having to fight the minks again while ensuring they were finished off for good.
