In the Japanese version of One Piece, Usopp is voiced by Kappei Yamaguchi. In the English dub, Usopp is voiced by Sonny Strait. (https://en.wikipedia.org/wiki/Kappei_Yamaguchi)
Japanese Voice Actor: Kappei Yamaguchi

Date of Birth
May 23, 1965 (https://en.wikipedia.org/wiki/Kappei_Yamaguchi)
About Kappei
Kappei Yamaguchi (山口 勝平) is a highly recognizable Japanese voice actor known for portraying energetic and comedic characters in anime. He has voiced Usopp, the sniper of the Straw Hat Pirates, since One Piece first aired in 1999.
Yamaguchi’s voice acting career spans many iconic anime series, and he is particularly known for characters with lively personalities and comedic timing. His performances have made him one of the most widely recognized voices in the anime industry.
Beyond One Piece, he is also famous for voicing L (Ryuzaki) in Death Note and Shinichi Kudo in Detective Conan.
(https://en.wikipedia.org/wiki/Kappei_Yamaguchi)
Hometown
Kappei Yamaguchi was born in Fukuoka, Fukuoka Prefecture, Japan.
(https://en.wikipedia.org/wiki/Kappei_Yamaguchi)
Career Highlights
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Usopp — One Piece (1999–present): The Straw Hat Pirates’ sniper, appearing across anime episodes, films, specials, and video games.
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L (Ryuzaki) — Death Note: One of the most iconic anime detective characters.
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Shinichi Kudo / Jimmy Kudo — Detective Conan: The main protagonist of the long-running mystery franchise.
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Ranma Saotome — Ranma ½: A classic lead role in the famous martial arts comedy anime.
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Inuyasha — Inuyasha: The title character of the popular fantasy adventure series.
Full Current Filmography
Note: Yamaguchi has a large body of work across anime, films, and games. The list below includes documented roles from reference sources and may not be exhaustive.
Anime television (documented credits)
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One Piece — Usopp
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Death Note — L (Ryuzaki)
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Detective Conan — Shinichi Kudo
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Ranma ½ — Ranma Saotome (male)
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Inuyasha — Inuyasha
Anime films (documented credits)
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One Piece film series — Usopp
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Detective Conan films — Shinichi Kudo
Video games (documented credits)
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One Piece video games — Usopp
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Detective Conan games — Shinichi Kudo
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Inuyasha games — Inuyasha
Critical Reception
Kappei Yamaguchi’s portrayal of Usopp is widely praised for its expressive humor, emotional depth, and dramatic intensity, particularly during major story arcs where Usopp grows as a character. His energetic voice performance has become inseparable from the Straw Hat Pirates’ sharpshooter.
(https://en.wikipedia.org/wiki/Kappei_Yamaguchi)
Sources
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Kappei Yamaguchi — biography and filmography
https://en.wikipedia.org/wiki/Kappei_Yamaguchi -
Behind The Voice Actors — Kappei Yamaguchi
https://www.behindthevoiceactors.com/Kappei-Yamaguchi/
Social Media
Verified public accounts:
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X (Twitter): https://x.com/ENma_Dororon
English Voice Actor: Sonny Strait

Date of Birth
July 28, 1965
(https://en.wikipedia.org/wiki/Sonny_Strait)
About Sonny
Sonny Strait is the English voice of Usopp in the One Piece anime’s Funimation/Crunchyroll English dub. He is an American voice actor, ADR director, and comic book artist who has been involved in anime dubbing since the late 1990s.
Strait is widely recognized for voicing several iconic characters across major anime franchises. In addition to Usopp, he is known for portraying Krillin in the Dragon Ball franchise and Maes Hughes in Fullmetal Alchemist. His energetic and comedic voice acting style fits many expressive characters in anime.
Outside of voice acting, Strait is also a professional comic book writer and illustrator, contributing to several independent comic projects.
(https://en.wikipedia.org/wiki/Sonny_Strait)
Hometown
Sonny Strait was born in Kaufman, Texas, United States.
(https://en.wikipedia.org/wiki/Sonny_Strait)
Career Highlights
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Usopp — One Piece (English dub): The Straw Hat Pirates’ sniper, voiced by Strait across hundreds of episodes, films, and video games.
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Krillin — Dragon Ball franchise: One of the longest-running characters in anime, voiced by Strait in many English adaptations.
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Maes Hughes — Fullmetal Alchemist / Brotherhood: A beloved supporting character in the popular fantasy anime.
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Present Mic — My Hero Academia: A prominent hero and teacher character in the superhero anime.
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ADR direction: Strait has worked behind the scenes as a director on several English anime productions.
Full Current Filmography
Note: Sonny Strait has an extensive career with many credits across anime, films, and games. The list below reflects documented roles from reference sources and may not be exhaustive.
Anime (English dubbing) — documented credits
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One Piece — Usopp
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Dragon Ball Z / Dragon Ball Super — Krillin
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Fullmetal Alchemist / Brotherhood — Maes Hughes
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My Hero Academia — Present Mic (Hizashi Yamada)
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Black Butler — Undertaker
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Baccano! — Isaac Dian
Films — selected credits
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One Piece Film: Strong World — Usopp
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One Piece Film: Z — Usopp
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One Piece Film: Gold — Usopp
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One Piece Film: Red — Usopp
Video games — selected credits
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One Piece Pirate Warriors series — Usopp
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One Piece Odyssey — Usopp
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Dragon Ball FighterZ — Krillin
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Dragon Ball Z: Kakarot — Krillin
Critical Reception
Sonny Strait’s portrayal of Usopp is widely praised for capturing the character’s comedic personality, exaggerated reactions, and emotional storytelling. His energetic performance has helped define Usopp’s personality for English-speaking audiences of One Piece.
(https://en.wikipedia.org/wiki/Sonny_Strait)
Sources
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Sonny Strait — biography and filmography
https://en.wikipedia.org/wiki/Sonny_Strait -
IMDb — Sonny Strait profile
https://www.imdb.com/name/nm0833336/ -
Behind The Voice Actors — Sonny Strait
https://www.behindthevoiceactors.com/Sonny-Strait/
Social Media
Verified public accounts:
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X (Twitter): https://x.com/SonnyStrait
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Instagram: https://www.instagram.com/sonnystrait/
