Android 18 is a fictional character from the Dragon Ball series. Originally a human named Lazuli, she was transformed into an android by Dr. Gero. She is the twin sister of Android 17. Initially introduced as an antagonist, she eventually becomes an ally to the Z Fighters. Android 18 is known for her strength, speed, and agility, which make her a formidable fighter. She is married to Krillin and is the mother of their daughter, Marron, showcasing her more compassionate and human side.