Trunks

Trunks is the son of Buruma (Bulma) and Vegita as such he is half saiyan and half human, like Gohan and Goten. Being the son of Buruma he was raised to be very smart at science. Later on in his life he fights the anderoids along side with Goten but finds them to be to strong, Buruma creates a time machine and sends Trunks back to help Gokuo and Gohan fight. There is also a version of Trunks as a small child who was best friends with Goten. He and Goten played a part in the Brolly story and the fusion form movie. Trunks is pretty much famous for killing Freiza by cutting him in half. He is also a main character in Dragon Ball GT.