King Vegeta

King Vegeta (ベジータ王, Bejīta Ō) was the King of all Saiyans and the father of Vegeta and Tarble. He was also the commanding hero of the Saiyan Army, and led his people to victory in the Saiyan-Tuffle war, in which the planet was renamed in his honor. After his people are annexed by Frieza's planet trade organization, he had no choice but to pledge allegiance, but kept power over his people.

King Vegeta appears to be a level-headed, stoic, and honorable man and a symbol of Saiyan pride. He was also a ruthless and merciless military commander who openly took enjoyment in the end of his opponents, traits he was more than happy to pass along to his son personally bringing him along in at least one such battle. Although he is "King", he has come to terms with the fact that his people have no real freedom under "Lord Frieza", but he does not let this feeling on to his people. One important aspect of King Vegeta is that he was the only person Vegeta truly loved for most of his life. When Frieza fatally wounded Vegeta, he explained to Goku that, apparently, the reason why he served Frieza was because Frieza threatened his father.

King Vegeta looks a lot like his son Vegeta himself, only with a beard and brown hair and is much taller. He wears the Vegeta Royal Family Crest on the left side of his armor, as did Prince Vegeta as a child. He also has a large crest on the seat of his throne. His name, like his son's, is a pun on "vegetable".
King Vegeta's power level is unknown, as it was never actually stated. As a Saiyan warrior, it was remarked that he was far less powerful than his son Vegeta was even as a child. However, this opinion came from Vegeta himself — who did not have a high opinion of his father. During Dragon Ball Z: Bardock - The Father of Goku, the doctors working on Bardock after his injury sustained on Planet Kanassa, stated that his power level was nearing 10,000, and was expected to pass up King Vegeta in a short time.