garp is known as hero of the MarinesGarp 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.