zero (rockman)
Zero (ゼロ) is one of the three main characters of the Rockman X series, as well as the protagonist of the Rockman Zero series. He also makes an appearance as Biometal Model Z in the Rockman ZX series.
A high ranking Irregular Hunter in the X series, and a legendary freedom fighter in the Zero series, he's a die hard warrior who doesn't hesitate to take action. However, behind his cold and emotionless attitude lies a wounded soul.
He is created by Dr. Albert W. Wily during the Rockman series. As such, his designation is DWN-∞ (Infinity). He has the Maverick Virus contained in a gem inside his head which Sigma smashed the gem, causing the Maverick Virus to infect both Sigma and Zero. Subsequently, Zero no longer showed any signs of Maverick behavior while Sigma became a Maverick.