Grumman (グラマン, Guraman) is the commander of the Eastern Headquarters. He is an old man that takes a lighthearted approach to his command. When Roy Mustang transfers from Eastern Headquarters to Central, Grumman authorizes the transfer of Mustang's subordinates, including his granddaughter Riza Hawkeye. He makes no further contributions in the anime, though during a brief cameo in Conqueror of Shamballa he is implied to have replaced King Bradley. In the manga, after the homunculi strip Mustang of his subordinates, he calls for Grumman's aid. Grumman, not under the homunculi's surveillance, has since been acting on Mustang's behalf in intelligence gathering and communication. Though a willing ally, he is reluctant to openly work against the military as becoming a traitor would make it difficult to become the leader of Amestris.