Raditz

Goku's (Kakarot, Kakarrot) saiyan brother. He is a first class warrior, presumably making him stronger than "lower-class" saiyans like Tarble and Goku. and makes his first appearance in the first episode of Dragonball Z (DBZ for short). His name is a pun on Radish. Raditz is a typical saiyan, he's naturally violent in nature, and his evil becomes even more clear as the series goes on. When he shows up, he is the strongest fighter on earth, and non of the Z Warriors had a chance against him alone. However Piccolo and Goku join forces momentarily to help stop him. He meets his end when Goku has him in a hold from behind, and having being weakened by Gohan's earlier attack (a flying, head-on (literally) attack while his power level was 1,370)), he is unable to break free. As you might have guessed, Goku sacrifices himself to kill Raditz. He is killed with Piccolo's "Special Beam Canon" attack and it goes right through Raditz as well as Goku, killing them both.