Tarble is the younger brother of Vegeta. In the OVA Dragon Ball: Yo! Son Goku and His Friends Return!!, he came to Vegeta's aid alongside his wife Gure. He was banished by King Vegeta by being so weak, and is one of the few Saiyan heroes in the show that doesn't turn into a Super Saiyan. He also made his video game debut in Dragon Ball: Raging Blast 2. He wears the classic Saiyan armor, and also looks similar to his older brother, but acts much like his polar opposite.
Tarble is Vegeta's younger brother. Unlike Vegeta and every pure-blooded Saiyan (besides Goku and Gine), Tarble is a kindhearted and polite individual. It was because of this along with his relatively weak power level that he was sent off to a distant planet. In the special, he comes to Earth to ask for Vegeta's assistance in defeating two remnants of Frieza's forces who have been terrorizing the planet he has settled on.
Unlike his father and brother, Tarble shows a pleasant and well-mannered personality. He is less prideful, more grateful to those willing to help him, and more heroic. Likewise, after Frieza's death, he fights against the planet broker's remaining soldiers when they begin to terrorize worlds for their own ends. Tarble is far more pacifistic than Vegeta and Saiyans in general.