Android 18, born Lazuli, is a major character and former antagonist in the Dragon Ball franchise. Lazuli and her twin brother Lapis were originally regular humans until they were abducted and genetically modified by the evil scientist Dr. Gero. Reborn as Android 18 and 17 respectively, Lazuli and Lapis became powerful cybernetic warriors created with the intention of killing Gero's enemy Son Goku. However, the twins betrayed and murdered Gero as soon as they had the chance to. Unlike her alternated future counterpart who is completely evil and weaker, 18 is way stronger and honorable than her future self. Although she originally planned to kill Goku, 18's priorities changed after the Bio-Android Cell absorbed her and her brother to achieve his perfect form. Upon being freed from Cell's body by Goku's son Son Gohan, Android 18 became an ally to the Z-Fighters.