Android 18 (Jinz ningen J Hachi-G, lit. "Artificial Human No. 18"), Lazuli (Razuri) when she was an ordinary human, is the twin sister of Android 17 and Dr. Gero's eighteenth android creation, designed to serve Gero's vendetta against Goku.
18 was awoken from her stasis by Gero to take on the Z-Fighters. 17 killed Gero shortly after his 18 during Dragon Ball Super's Universal Survival Saga.