Crocodile, also known as Sir Crocodile and the former president of Baroque Works, is voiced by Ryūzaburō Ōtomo in the original Japanese version of One Piece and John Swasey in the current English dub. Both actors are known for their deep, commanding voices, making them ideal choices for one of the series’ most intimidating villains.
Japanese Voice Actor: Ryūzaburō Ōtomo
Date of Birth
May 18, 1952.
About Ryūzaburō
Ryūzaburō Ōtomo is a veteran Japanese voice actor, actor, and narrator whose career spans more than four decades. He is renowned for his deep, powerful voice and frequently portrays imposing villains, military leaders, and larger-than-life characters. Throughout his career, he has voiced memorable roles in franchises such as Dragon Ball, Digimon, Fullmetal Alchemist, and One Piece.
In One Piece, Ōtomo voices Sir Crocodile, one of the Seven Warlords of the Sea and the mastermind behind the Alabasta Saga. His performance gives Crocodile an air of intelligence, menace, and authority that helped establish the character as one of the franchise’s greatest antagonists.
Hometown
Tokyo, Japan.
Career Highlights
Some of Ryūzaburō Ōtomo’s most notable roles include:
- Crocodile — One Piece
- Myotismon (Vamdemon) — Digimon Adventure
- Dabura — Dragon Ball Z
- Buccaneer — Fullmetal Alchemist: Brotherhood
- Jogo — Jujutsu Kaisen
- Sebas Tian — Overlord
- Black Doom — Shadow the Hedgehog
- King Cold — Dragon Ball Kai
Full Current Filmography
The following list highlights major documented anime roles and may not be exhaustive.
Television Anime
1999
- Digimon Adventure — Myotismon (Vamdemon)
1999
- One Piece — Crocodile
2009
- Fullmetal Alchemist: Brotherhood — Buccaneer
2015
- Overlord — Sebas Tian
2020
- Jujutsu Kaisen — Jogo
Anime Films
2007
- One Piece: Episode of Alabasta – The Desert Princess and the Pirates — Crocodile
2019
- One Piece: Stampede — Crocodile
2023
- One Piece Odyssey (Game) — Crocodile
Critical Reception
Crocodile is widely regarded as one of the greatest villains in One Piece, and Ōtomo’s performance is a major reason for the character’s enduring popularity. Fans frequently praise his calm, calculating delivery, which makes Crocodile feel dangerous even when speaking quietly. His portrayal helped define the character throughout the Alabasta Arc and Crocodile’s later appearances in Impel Down, Marineford, and the Cross Guild storyline.
Our Sources
- Behind The Voice Actors – Crocodile / Mr. 0 (https://www.behindthevoiceactors.com/characters/One-Piece/Crocodile-Mr-0/)
- Ryūzaburō Ōtomo Biography (https://en.wikipedia.org/wiki/Ry%C5%ABzabur%C5%8D_%C5%8Ctomo)
- Dubbing Wikia – Ryūzaburō Ōtomo (https://dubbing.fandom.com/wiki/Ry%C5%ABzabur%C5%8D_%C5%8Ctomo)
- Anibase – Sir Crocodile Character Profile (https://anibase.net/en/character/1DXX5/Sir-Crocodile)
English Voice Actor: John Swasey
Date of Birth
John Swasey’s exact date of birth is not publicly documented in reliable official sources.
About John
John Swasey is an American voice actor, ADR director, and scriptwriter known for his extensive work in anime dubbing. With a career spanning decades, he has voiced numerous villains, authority figures, and complex supporting characters across some of anime’s biggest franchises.
In One Piece, Swasey voices Sir Crocodile, the former Warlord of the Sea and founder of Baroque Works. His deep, authoritative performance captures Crocodile’s intelligence, ruthlessness, confidence, and strategic brilliance. Swasey’s portrayal has become one of the most recognizable villain performances in the English dub.
Hometown
John Swasey’s hometown has not been publicly documented in official biographies.
Career Highlights
Some of John Swasey’s most notable roles include:
- Crocodile — One Piece
- All For One — My Hero Academia
- Van Hohenheim — Fullmetal Alchemist: Brotherhood
- Lord Death — Soul Eater
- Gendo Ikari — Neon Genesis Evangelion (Netflix Dub)
- Sir Nighteye — My Hero Academia
- August — Fairy Tail
- Dreyfus — The Seven Deadly Sins
- Leol — Hunter × Hunter
Full Current Filmography
The following list highlights major documented credits and may not be exhaustive.
Anime Series
2008
- Soul Eater — Lord Death
2009
- Fullmetal Alchemist: Brotherhood — Van Hohenheim
2010
- One Piece — Crocodile
2014
- Fairy Tail — August
2016
- The Seven Deadly Sins — Dreyfus
2018
- My Hero Academia — All For One
- My Hero Academia — Sir Nighteye
2019
- Neon Genesis Evangelion (Netflix Dub) — Gendo Ikari
2024
- One Piece (Egghead Arc Dub Episodes) — Crocodile
Anime Films
2019
- One Piece: Stampede — Crocodile
2022
- One Piece Film: Red — Crocodile
ADR Directing Highlights
- One Piece
- Fairy Tail
- The Ancient Magus’ Bride
- Mushoku Tensei
- Fullmetal Alchemist franchise
This filmography reflects publicly documented credits and may not be exhaustive.
Critical Reception
John Swasey’s portrayal of Crocodile has been praised by English-dub viewers for its commanding presence and intimidating delivery. Fans frequently highlight how his deep voice and measured performance emphasize Crocodile’s status as one of the most intelligent and dangerous villains in One Piece.
Because Crocodile relies more on manipulation, strategy, and psychological intimidation than brute force, Swasey’s performance has been credited with preserving the character’s sophisticated menace in the English adaptation. His portrayal remains one of the most respected villain performances in the One Piece dub.
Our Sources
- Behind The Voice Actors – Crocodile / Mr. 0 (https://www.behindthevoiceactors.com/characters/One-Piece/Crocodile-Mr-0/)
- Behind The Voice Actors – John Swasey (https://www.behindthevoiceactors.com/John-Swasey/)
- Anime News Network Encyclopedia – John Swasey (https://www.animenewsnetwork.com/encyclopedia/people.php)
- One Piece Wiki – Crocodile (https://onepiece.fandom.com/wiki/Crocodile)
- IMDb Profile – John Swasey (https://www.imdb.com/name/nm0841669/)
Social Media
No verified public social media accounts or official personal website for John Swasey could be confirmed from reliable public sources at the time of writing.
