Midvalley the Hornfreak is a violent musician who is able to use his saxophone, Sylvia, to synchronize sound waves with pain, causing physical damage. He also is capable of neutralizing sounds by playing counter-frequencies. He and his band originally just kill for money until being found by Knives, who kills all except Midvalley. He dislikes both Legato and Knives, which leads him to try to kill Legato, though he is quickly killed himself. Legato uses Midvalley's body to attack Hoppered, and it is buried with his saxophone on his gravestone afterward. He has a smaller role in the anime, mainly acting as Legato's bodygaurd until fighting Vash, and killing himself after overloading his saxophone.    from wikipedia

Vash the Stampede is a wanted man with a habit of turning entire towns into rubble. The price on his head is a fortune, and his path of destruction reaches across the arid wastelands of a desert planet. Unfortunately, most encounters with the spiky-haired gunslinger don't end well for the bounty hunters who catch up with him; someone almost always gets hurt - and it's never Vash. 
 
Oddly enough, for such an infamous fugitive, there's no proof that he's ever taken a life. In fact, he's a pacifist with a doughnut obsession who's more doofus than desperado. There's a whole lot more to him than his reputation lets on - Vash the Stampede definitely ain't your typical outlaw. 
 
(Source: Funimation)

[Wiki (jp)](https://ja.wikipedia.org/wiki/西村朋紘) | [Wiki (en)](https://en.wikipedia.org/wiki/Tomohiro_Nishimura)

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José Gilberto Vilchis is a Mexican voice actor, son of voice actress Banny Barrero and nephew of the late voice actor Jesús Barrero. He is known for being the Latin American Spanish voice of Loki in the *Marvel Cinematic Universe*, and Merry in *The Lord of the Rings*.

He is the recurring dub voice of Mark Wahlberg, Bradley Cooper and Tom Hiddleston.

Much of the damage attributed to "Vash" is caused by the activities of bounty hunters who are after the 60,000,000,000$$ (sixty billion "double dollars") reward on Vash's head for the destruction of a city called July. Vash does not clearly remember the destruction of July, and only wants "love and peace", as he puts it; though he is a gunfighter of inhuman skill, he uses his weapons only to save lives wherever he can. 
As the series progresses, more is gradually learned about Vash's mysterious history and the history of the human civilization on Gunsmoke, the desert planet the series is set on. The series is often humorous in tone, but at the same time it involves very serious character development and especially in later episodes it becomes quite emotionally intense. Vash is occasionally joined by a priest, Nicholas D. Wolfwood, who is almost as good a gunfighter as Vash himself, and later is targeted by a band of assassins known as the Gung-Ho Guns for reasons which are mysterious at first. 
Trigun evolves into a very serious discussion of the nature of morality, posing questions such as: What is the nature of morality? Can we judge different moral codes? If a person is forced to betray their moral code, does that betrayal invalidate that moral code, and can the person still try to live up to that moral code? Can the person find redemption from their wrongs, and if so, how? 
(Source: Wikipedia) 

Originally serialized in 102 chapters, condensed then to 96 in the tankoubon release.
Vol.8 contains 2 extra chapters: “FREED BIRD”; Young King Ours 1999-09, 10.

Much of the damage attributed to "Vash" is caused by the activities of bounty hunters who are after the 60,000,000,000$$ (sixty billion "double dollars") reward on Vash's head for the destruction of a city called July. Vash does not clearly remember the destruction of July, and only wants "love and peace", as he puts it; though he is a gunfighter of inhuman skill, he uses his weapons only to save lives wherever he can. 
As the series progresses, more is gradually learned about Vash's mysterious history and the history of the human civilization on Gunsmoke, the desert planet the series is set on. The series is often humorous in tone, but at the same time it involves very serious character development and especially in later episodes it becomes quite emotionally intense. Vash is occasionally joined by a priest, Nicholas D. Wolfwood, who is almost as good a gunfighter as Vash himself, and later is targeted by a band of assassins known as the Gung-Ho Guns for reasons which are mysterious at first. 
Trigun evolves into a very serious discussion of the nature of morality, posing questions such as: What is the nature of morality? Can we judge different moral codes? If a person is forced to betray their moral code, does that betrayal invalidate that moral code, and can the person still try to live up to that moral code? Can the person find redemption from their wrongs, and if so, how? 
(Source: Wikipedia) 
 
Note: Includes 3 extra chapters.