Adam Hamasaki was a medic within Arkham City.
Adam Hamasaki is a medical volunteer who joined the Arkham City medical team lead by Aaron Cash. He was working inside the Gotham Cathedral when Harley Quinn and Joker's thugs broke in. After Batman saved the group, he talked to Adam and he told him about the condition of a doctor. He was later captured by Riddler and he was the first doctor saved by Batman. He then told Batman one of the many codes to Riddler's messages and he later made his way back to the church. He was eventually joined by Eddie Burlow, Jack Ryder, Vicki Vale, and Quincy Sharp.