Dr. Wily

The main antagonist of Mega Man [ロックマン] in the classic Mega Man [ロックマン] series. He is an evil genius in the field of robotics. Initially, he was an assistant to Dr. Light [Dr. ライト] but resented his place as his subordinate and he wanted to use robots as a way to usurp Dr. Light's position and control the world. He is the creator of Bass [フォルテ] and almost all of the boss monsters Mega Man faces in the classic iteration of the series.

In the Mega Man X [ロックマンX] series he is the creator of Zero [ゼロ] and through him, he is the creator of the virus that would come to infect the main antagonist of that series Sigma [シグマ].