Doctor Gero

Dr. Gero (ドクター・ゲロ), also known as Android 20, is a major antagonist in the Dragon Ball series, particularly prominent in the Android Saga. He is a brilliant scientist and the mastermind behind the Red Ribbon Army, dedicated to creating powerful androids. Dr. Gero initially appears in human form but later transfers his brain into Android 20 to achieve immortality and exact revenge. His primary goal is to defeat Goku, who had previously destroyed the Red Ribbon Army. Dr. Gero created a series of androids, including Android 16, 17, and 18, as well as the ultimate being, Cell. Despite eventually being killed by his own creations, Androids 17 and 18, Dr. Gero's legacy, particularly Cell, continues to have a profound impact on the Dragon Ball universe. He is not only a scientist for the Red Ribbon Army but also the architect of the Android Project, his technical prowess and pursuit of technology make him an important character in the Dragon Ball world.