Gogeta

Gogeta (ゴジータ) is an anime-only character who is the resulting fusion of the two highly powerful Saiyans Goku and Vegeta when they perform the Fusion Dance properly. His voice is a dual voice that contains both Goku's and Vegeta's voices. Gogeta is famous for his amazing power and speed, and is often regarded as one of the series' most powerful characters, along with his Potara Earring fusion counterpart Vegito