Heero (often abbreviated in fanfiction as "1") took his name from the martyred leader of colonies. His real name is never mentioned in the series, nor is much of his past revealed. Heero often appears cold and emotionless, but is in reality quite a caring individual who simply prefers to keep his emotions private. Pilot of Wing Gundam. Piloted Gundam Epyon temporarily before switching machines with Zechs Merquise. Pilots Wing Zero Gundam for the rest of the series.