Toyman

Hiro Okamura is the heroic successor to Toyman, a wealthy Japanese teenager with genius-level intellect and incredible mechanical prowess. He is a great ally to Superman and Batman, is an honorary member of the Justice League and has been seen as a member of one futuristic version of the Teen Titans. Hiro Okamura was created by Jeph Loeb and Ed McGuinness, first appearing in Superman (Volume 2) #177. (2002)