From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
King Vegeta (ベジータ王, Bejiita-ō; Literally meaning "Vegeta King") is the king of all Saiyans and the father of Vegeta and Tarble. He is also the commander of the Saiyan Army and leads his people to victory in the Saiyan-Tsufruian war, and the planet is re-named in his honor. After his people are annexed by Freeza's Force, he has no choice but to pledge allegiance, but keeps power over his people.
King Vegeta's Japanese name is a pun on the word Bejitaburu, or Vegetable in English.
King Vegeta looked very much like Vegeta himself, only with a beard and brown hair and was much taller. He wears the Vegeta Royal Family Crest on the left side of his armor, as did Vegeta as a child. He also has a large crest on the seat of his throne. His name, like his son's name, 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 battle power was nearing 10,000 and was expected to pass King Vegeta's battle power in a short time.
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 Freeza", but he does not show this feeling 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 Freeza fatally wounded Vegeta, he explained to Goku that, apparently, the reason why he served Freeza was because he had threatened his father.
 Early life
Main article: Saiyan-Tuffle war
King Vegeta became an important figure at the time when the Tuffles and the Saiyans lived together on Planet Plant. In 720 Age, he alone was smart enough to rally and lead his people against the Tuffles in a conflict that raged for ten long years; this event was the Saiyan-Tuffle war. After the war's end in 730 Age, the planet was renamed Planet Vegeta in his honor.
Some time after, the Saiyan became space-farers and eventually came under the dominance of Freeza. Reluctantly, King Vegeta pledged his allegiance to Freeza knowing that the Saiyans were not powerful enough to defeat him. The Saiyans worked under Freeza for several years. After marrying an unnamed queen, King Vegeta had his first child in 732 Age, Vegeta. The young prince would later be given to Freeza under unknown circumstances. As revealed in Dragon Ball: Yo! Son Goku and His Friends Return!!, King Vegeta had a second son, Tarble, whom was deemed inferior and weak, thus sent away from Planet Vegeta as an infant.
 Destruction of the Saiyans
Main article: Genocide of the Saiyans
In 737 Age, prior to Freeza's attack on Planet Vegeta, King Vegeta realized that Freeza had no further use for the Saiyans and no longer needed them around. According to an anime-only flashback, he decides to rebel against Freeza's oppression and mounts an assault on Freeza's capital ship.
When he arrives in Freeza's chamber room, Zarbon and Dodoria bear witness as Freeza kills him with a single punch to the jaw after Freeza had dodged his punch without effort. The Saiyan elites that followed were also killed by Freeza. Shortly thereafter, Freeza launched his final assault and destroyed Planet Vegeta and the entire remaining population of the Saiyan race.
In Dragon Ball Z: Broly: The Legendary Super Saiyan, King Vegeta was seen in a flashback by Paragus, the father of Broly. In this flashback, it is seen that King Vegeta ordered newborn Broly to be executed due to his extremely extraordinary battle power of 10,000. This amount of power was seen as a possible threat to the royal Saiyan family, so Broly was ordered for execution immediately. Paragus attempted to change King Vegeta's mind, but was blasted with a powerful energy attack and thrown into a dump, along with his son. Ironically enough, Freeza would kill King Vegeta and destroy Planet Vegeta later that day.
Although he does not make a proper appearance in Dragon Ball Z Gaiden: Saiya-jin Zetsumetsu Keikaku, King Vegeta is momentarily seen in a flashback and is also mentioned at certain points throughout the movie. In the 2010 remake, Dragon Ball: Plan to Eradicate the Super Saiyans, King Vegeta is also seen during a second flashback.
 Video games
King Vegeta is a playable character in the game Dragon Ball Z: Budokai Tenkaichi 3. This is the first appearance of King Vegeta as a playable character in a video game. In this game, he can also turn into a Great Ape, Great Ape King Vegeta (大猿 ベジータ王, Ōzaru Bejiita-ō), and retain his self control (just like his son, Vegeta, suggesting that this was a trait common to Saiyan nobility). This is the first bearded Great Ape in the history of official Dragon Ball-related productions. His special attacks include his signature Execution Beam, a large purple beam wave, the Super Energy Wave Volley, and the Orga Blaster, a rush attack in which King Vegeta strikes his foe slowly and powerfully with aristocratic discontent before blowing them away with a huge purple Ki Wave. In his Great Ape form, his special attacks include his single-handed version of the Super Galick Gun, the Super Explosive Wave, and the Chou Makouhou Barrage.
King Vegeta is only seen in some original scenes created for the anime, though Vegeta is acknowledged to have a father, the King of Planet Vegeta. King Vegeta's appearance is never shown, named, or described in the manga, but he is directly mentioned briefly in dialogue between Freeza and Vegeta. In the dialogue, he is said to have been surpassed by his son Vegeta when Vegeta was only a child. The dialogue itself is as follows:
Freeza: "I attacked Planet Vegeta and killed its King in my first form. Your father didn't take long to dispatch, Vegeta."
Vegeta: "I had surpassed him when I was a child."
- Chou Makouhou – Used by only Great Ape King Vegeta. King Vegeta releases a massive wave of energy from his mouth.
- Chou Makouhou Barrage – Great Ape King Vegeta releases a rapid flurry version of Chou Makouhou.
- Execution Beam – A purple beam of energy King Vegeta used on a soldier after said soldier told him that they have to wait for three days to invade a planet for Freeza's organization due to how long it is going to take until the planet experiences it's Full Moon. He also uses it on Paragus in Broly: The Legendary Super Saiyan. Its name is derived from Budokai Tenkaichi 3.
- Galick Gun – Though it is never seen in the TV series, King Vegeta does use this technique (or rather, Super Galick Gun) in his Great Ape form in the Budokai Tenkaichi video game series.
- Great Ape Transformation – As seen during a flashback in Dragon Ball GT, as well as in Dragon Ball Z Budokai Tenkaichi 3, King Vegeta has the ability to transform into a Great Ape. While transformed, he has mental control over the transformation.
- Orga Blaster – King Vegeta rushes toward the opponent and smacks them aside. King Vegeta then takes the opponent by their head knees them in the face and punches them in the face. The final part of this attack involves King Vegeta using a full power energy wave to blast his opponent away. He uses this attack in the anime against an army of Frieza's soldiers whilst invading his ship to rescue his son, Vegeta.
- Power Ball – The natural Saiyan ability to make an artificial moon to make use for transforming into a Great Ape.
- Super Energy Wave Volley – King Vegeta releases a rapid barrage of purple energy blasts at his opponent, causing a massive accumilation of damage.
- Super Explosive Wave – King Vegeta releases a gigantic energy wave that deals far greater damage than the basic explosive wave.
 Voice actors
- Japanese dub: Banjō Ginga (TV series and Budokai Tenkaichi 3) and Masaharu Satō (Movie 8)
- Ocean Group dub: Colin Murdock
- FUNimation dub: Christopher R. Sabat
- Latin American dub: Arturo Casanova
- King Vegeta is usually drawn with brown hair, but in a flashback that Vegeta has while recovering from a training exercise gone awry in the pre-Androids Saga, he is drawn with black hair. The animators did the same with Vegeta by first giving the character brown hair, as opposed to black hair, and changing the color as episodes progressed.
- In the "Dragon History" game mode of Budokai Tenkaichi 3, King Vegeta states, "You will join your father in the next world" to Freeza. This means that Cold and King Vegeta must have had some sort of interaction at a point prior to his demise. This could also just be a plot within the story (though it is a "what if" scenario battle).
- In Budokai Tenkaichi 3, King Vegeta is listed as an evil character.
- Although numerous website summaries and the like state that he does, King Vegeta does not appear in Dragon Ball Z: Bardock: The Father of Goku. This is most likely due to confusion with flashbacks in the anime.