Dr. Gero is a fictional character from the Dragon Ball series, created by Akira Toriyama. He is a brilliant scientist and former member of the Red Ribbon Army, known for his expertise in robotics and genetic engineering. Dr. Gero is responsible for creating several powerful androids, including Android 17 and Android 18, to seek revenge against the series' protagonist, Goku. In the series, Dr. Gero's ultimate goal is to achieve immortality and create the perfect warrior. His experiments often lead to unintended consequences, resulting in formidable foes for the heroes. His character embodies themes of ambition and the ethical dilemmas of scientific advancement.