A prior member of the Alliance’s mobile suit development team, all of whom disbanded and fled the project after completing the Tallgeese and designing Wing Gundam Zero, and eventually set up development on separate colony clusters and Earth. Doctor J. (Colony Cluster L1) designed and developed the Wing Gundam and trained Heero Yuy to be its pilot. He also gave Heero his name. Dr.J wears tight-fitting eye lenses, has a prosthetic left hand, wears leg braces, and walks with the aid of a cane. GundamOfficial lists him as a cyborg.