Doctor Albert W. Wily

Albert W. Wily  also called  Dr. Willy, Dr. Wiley, and  Dr. Waily is the main antagonist of the original  Mega Man series, appearing in every game as the antagonist but not necessarily always as the final boss. In the  Mega Man series, Wily resembles a stereotypical mad scientist as he schemes to take over the world, creating several robots to help him. Though Wily's schemes were stopped time and time again, this did not stop him from being recorded in history as a legendary mad scientist, his legacy continuing even into the next century. He even appears consciously active long after the demise of his mortal body, playing a significant role in the  Mega Man X series.