Monkey D. Garp

Garp is an eccentric but caring man, who is loyal to both his criminal family and the Marine Headquarters, who he has served for decades. He is loud, boisterous, exuberant, and overall acts in a similar manner to his grandson. He has a habit of falling asleep during conversations and can be absent-minded. Luffy's crew noted his, apparently hereditary, selfishness during Garp's interaction with Luffy in Water 7.

Unlike many Marines, Garp does not believe that a person's lineage determines their path. On a similar note, he does not believe that being labeled a criminal necessarily makes someone a bad person. Although Garp wanted his grandsons to become marines, he entrusted their care to a mountain bandit whom he had refused to turn over for prosecution.

Abilities and Powers

Garp is considered a living legend and is one of the strongest marines of all time. In his heyday he was famous for cornering Gol D. Roger many times, as he was one of the very few people capable of fighting the Pirate King. In fact, Roger states that he and Garp had almost killed each other many times throughout their battles. Due to his incredible power and popularity, Garp was offered the rank of admiral several times throughout his life but refused the promotion every time. As a testament to his strength, together with Roger he fought and defeated the Rocks Pirates, one of the strongest pirate crews in history that featured Roger's most formidable rival, Rocks D. Xebec, three future Emperors and other legendary pirates such as Shiki the Golden Lion. This tremendous feat earned Garp the title of Hero of the Marines.

Leadership

As a vice admiral of the Marine Headquarters, Garp has command over all lower ranking soldiers, as seen when he took two of Ripper's subordinates (Koby and Helmeppo) and made them his own subordinates instead due to his higher rank. Also, as a vice admiral, he has the potential to be called upon to be one of five vice admirals leading a fleet of ten battleships during a Buster Call.

Physical Abilities

Garp's strength is considered legendary. At his best he had monstrous punching power at his disposal, with his epithet, "Garp the Fist", attesting to the tremendous power of his punches. He claimed to have crushed eight mountains during his training to face Chinjao. This is proven when he was able to dent Chinjao's drill head, which was powerful enough to split the immensely hard Ice Continent in two, with relative ease. It is evident Whitebeard respects Garp's strength, as he mentioned him during his talk with Shanks.