Tomokazu Seki
Japanese actor and voice actor (born 1972)
Tomokazu Seki (関 智一, Seki Tomokazu; born September 8, 1972) is a Japanese voice actor and singer. He previously worked with Haikyō. He is honorary president of and affiliated with Atomic Monkey and the chairman of theater company HeroHero Q. He is a special lecturer at Japan Newart College.
Career
Seki landed his first role in the 1993 anime Mobile Suit Victory Gundam as Tomache Massarik. Some of his most notable roles include Shinichi Chiaki from Nodame Cantabile, Gilgamesh from the Fate franchise, Rob Lucci from One Piece, Gundam characters Domon Kasshu and Yzak Joule (from Mobile Fighter G Gundam, Mobile Suit Gundam SEED, and Mobile Suit Gundam SEED Destiny, respectively), Kyo Sohma from Fruits Basket, Whisper from Yo-kai Watch, Kanji Tatsumi from Persona 4, Shinya Kogami from Psycho-Pass, Ichiro Miyata from Hajime no Ippo, Haru Glory from Rave Master, Toya Kinomoto (Sakura Kinomoto's older brother) from Cardcaptor Sakura, Van Fanel from The Vision of Escaflowne, Suneo Honekawa in Doraemon, Enrico Pucci from JoJo's Bizarre Adventure, Chichiri from Fushigi Yuugi, and Ken Hidaka from Weiss Kreuz, alongside Hiro Yūki, Takehito Koyasu, and Shin-ichiro Miki. Koyasu and Miki, along with Seki, also had voice roles in Initial D as Keisuke Takahashi, Gravitation, and Nobuo Terashima in Nana. Seki has also voiced Ryūki Shi in Saiunkoku Monogatari, recurring guest character Meito Anizawa in Lucky Star, and Shōji Tōkairin in You're Under Arrest and related media, along with Sakiko Tamagawa, Akiko Hiramatsu, and Yoshiko Sakakibara.
On November 20, 2017, Seki apologized on the online radio program Unizon for an incident which had taken place a day earlier, during an event for the online radio program A&G All Star 2017, where he had instructed Yusuke Tonozaki, a newbie voice actor from his agency, to ask voice actress Rina Hidaka to have sex with him (one of them both) as a joke.
Filmography
Television animation
Original net animation (ONA)
Original video animation (OVA)
Theatrical animation
Drama CD
Card Captor Sakura Original Drama Album 1 (1998) – Tōya Kinomoto
Abunai series 1: Abunai Shuugaku Ryokou – Izumi Sudou
Abunai series 4: Abunai Campus Love – Wataru Sawada
Anatolia Story – Kikkuri
Angel Sanctuary – Sandalphon
Beauty Pop – Narumi Shogo
Buso Renkin – Moon Face
D.N.Angel Wink – Satoshi Hiwatari
Dragon Knights – Rath Eryuser
Everyday Everynight – Enohara Midato
FAKE ~A Change of Heart~ – Dee Laytner
Fate/Zero – Gilgamesh
Fruits Basket – Kyo Sohma
Gaki/Kodomo no Ryoubun – Kayano Hiromi
Gaki no Ryoubun series 1: Kayanoke no Okite – Hiromi Kayano
Gaki no Ryoubun series 2: Hasumi Koukou – Hiromi Kayano
Gaki no Ryoubun series 3: Saikyou Hiiruzu – Hiromi Kayano
Gaki no Ryoubun series 4: Uwasa no Shinzui – Hiromi Kayano
Gaki no Ryoubun series 5: Akuun no Jouken – Hiromi Kayano
Gaki no Ryoubun series 6: Manatsu no Zankyou – Hiromi Kayano
Gaki no Ryoubun series 7: Monster Panic – Hiromi Kayano
Gaki no Ryoubun series 8: Bunkiten Vol.1 Hottan – Hiromi Kayano
Gaki no Ryoubun series 9: Bunkiten Vol.2 Haran – Hiromi Kayano
Genso Suikoden II Drama CD – Luca Blight
Haou Airen – Hakuron
Juvenile Orion – Kusakabe Kaname
Kimi ga Suki Nanosa – Tsugumi Kanou
Love Celeb – Ginzo Fujiwara, Hakuron
Mekakushi no Kuni – Naitō Arō
Mossore
Niji no Irie ~Trouble Studio~ – Kiwa Irie
Rolex ni Kuchizukewo – Kazuya Yuu
Rurouni Kenshin – Sagara Sanosuke
Saiunkoku Monogatari – Ryūki Shi
Sakurazawa vs Hakuhou series 1: Shokuinshitsu de Naisho no Romance – Katsumi Hirose
Samurai Deeper Kyo – Shinrei
Suikoden II – Luca Blight
Tokyo Junk 1 & 2 – Yuuichi Sakura
Yatteraneeze! – Takashi Masaki
Radio
Fate/Zero Radio material – Gilgamesh
Saiunkoku Monogatari – Ryūki Shi
Video games
2nd Super Robot Wars Z Saisei-Hen – Gou
Another Century's Episode 2 – Domon Kasshu
Apocripha/0 – Sapphirus Hawthorne
Assassin's Creed II (Japanese version) – Ezio Auditore da Firenze
Assassin's Creed: Brotherhood (Japanese version) – Ezio Auditore da Firenze
Assassin's Creed: Revelations (Japanese version) – Ezio Auditore da Firenze
Atelier Lise ~Alchemist of Ordre~ – Client Marif
BlazBlue: Cross Tag Battle – Kanji Tatsumi (DLC)
Bleach Wii: Hakujin Kirameku Rondo – Arturo Plateado
Burning Rangers – Lead Phoenix
Daraku Tenshi – The Fallen Angels – Haiji Mibu
Dark Chronicle – Osmond
Evil Zone (Eretzvaju) – Danzaiver – Sho Mikagami
Fate/stay night – Gilgamesh
Fate/tiger colosseum – Gilgamesh
Fate/Unlimited Codes – Gilgamesh
Fate/Extra CCC – Gilgamesh
Fate/Grand Order – Gilgamesh, Wolfgang Amadeus Mozart
Fate/Extella: The Umbral Star – Gilgamesh
Fate/Extella Link – Gilgamesh
Fate/Samurai Remnant – Gilgamesh
God Eater 3 – Hugo Pennywort
Gradius The Slot – Ace
Granblue Fantasy – Gawain, Nicholas-[Original JP name]-(Shiro), Mepple (Mepple and Mipple), Suneo Honekawa
Guilty Gear Xrd – Lucifero, Answer
Guilty Gear -STRIVE- – Lucifero
Hakuouki Reimeiroku – Ryunosuke Ibuki
Harukanaru Toki no Naka de 1 – Morimura Tenma
Harukanaru Toki no Naka de 2 – Taira no Katsuzane
Harukanaru Toki no Naka de 3 – Minamoto no "Kurou" Yoshitsune
Harukanaru Toki no Naka de 4 – Sazaki
Harukanaru Toki no Naka de 5 – Seiryuu
Higurashi No Naku Koro Ni Kizuna – Riku Furude
Honkai Impact 3rd – Siegfried Kaslana
Initial D Arcade Stage series – Keisuke Takahashi
Invisible Sign series – Aizawa Shun
J-Stars Victory VS – Koro-Sensei
JoJo's Bizarre Adventure: All Star Battle R – Enrico Pucci
JoJo's Bizarre Adventure: Last Survivor – Enrico Pucci
Jujutsu Kaisen: Cursed Clash – Panda
Katekyo Hitman Reborn DS: Fate of Heat II – Bligganteth
Kamen Rider: Battride War Genesis – Great Leader of Shocker
Legend of Dragoon – Dart Feld
Lego Batman 3: Beyond Gotham (Japanese version) – Plastic Man
Lunar: Silver Star Story – Kyle
Marvel vs.
Begin with the source’s own compact description: “Tomokazu Seki” is japanese actor and voice actor (born 1972). The dossier treats that line as a proposition to test through Tomokazu, Seki and Japanese, not as a finished interpretation.
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The phrase “japanese actor and voice actor (born 1972)” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Sep 7, 2026. The linked authority identifier is Q284401. VIAF identifies the subject as 176113842. The Library of Congress control number is no2011140702. 5 of 5 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 1972, 1993, 2017 and 1998.
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This entry incorporates text from “Tomokazu Seki” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.