Marty Lewis is a supporting character in the anime adaptation of Rockman X (also known as Mega Man X). She is a young human girl who plays a key role in the story, often appearing alongside the main protagonists, X and Zero. Marty represents the human element caught in the conflict between Reploids and Mavericks, highlighting the emotional impact of the ongoing war. Her interactions with X help to emphasize the importance of hope and compassion in a world threatened by chaos.