Android 18 (人造人間１８号, Jinzōningen Jū Hachi-go) is Dr. Gero's eighteenth android creation (although, she is technically a cyborg), designed to serve Gero's vendetta against Goku. While her interests do not deviate from this expectation, Android 18's curiosity to activate Android 16, in spite of Gero's orders not to do so, lead Android 17 to take it upon himself to murder Gero himself. She later becomes the wife of Krillin and the mother of their only daughter, Marron. She also unofficially joins the Z Fighters. Although she does not take part in any of the battles against Majin Buu, she fights Super 17 in Dragon Ball GT.