Monkey D. Garp (モンキー・D・ガープ, Monkī D. Gāpu), alias Garp
the Fist (ゲンコツのガープ, Genkotsu no Gāpu) and Hero of the Navy (海軍の英雄, Kaigun no Eiyū), is the father of Monkey D. Dragon and Monkey D. Tiger, the grandfather of Monkey D. Luffy, and Portgaz D. Ace, and vice admiral of the Navy. He took charge of both Coby and Helmeppo's training and is one of the major figures, along with Sengoku, Shiki and Whitebeard, from when Gol D. Roger was still alive.
Garp is a tall, broad-chested, muscular Gray-haired man who is bearded and has a scar on his left eye. Due to the fact that he had showen his face in the past, he wore a dog mask when he was first introduced, so nobody would realize he was Luffy's grandfather. When this fact was revealed he discarded the mask. Since then, he has only worn the mask on entrances. Garp is the only vice admiral along with Tsuru to have special shoulder-pads; his are black and red whereas the standard color is blue. His birthday is May 2nd.
When he was younger, 24 years ago, Garp's hair and beard were still black. He also wore a much darker double breasted suit with a white shirt and a red tie, but he already had the scar above his left eye.
As a child, Garp greatly resembles Luffy however he still retains his scar on his left eye and wore a tropical-like button shirt with shorts. He is seen wielding a pipe bō staff and carrying a treasure chest while riding a tiger he tamed.