Kengo Kawanishi
Acting Born Feb 18, 1985 Osaka, Japon 129 credits
Biography
Kengo Kawanishi is a Japanese male voice actor born in Osaka on February 18, 1985. His blood type is A, and his stage name in Japanese is written as 河西健吾. He was formerly affiliated with Office Kaoru and is currently affiliated with Mause Promotion. Kawanishi debuted as a voice actor in 2006. In June 2010, he dubbed Sterling Knight for the first time as Christopher in the project Starstruck. Later, in October 2015, he secured his first starring role in an anime series as Augustus in Mobile Suit Gundam: Iron-Blooded Orphans. Chika Umino, who is the original author of March Comes In Like a Lion, described his voice as a shining dark voice. He is known for acting with 116 known credits.
Advertisement
Career overview
Kengo Kawanishi is a Japanese male voice actor born in Osaka on February 18, 1985. His blood type is A, and his stage name is written in Japanese characters as 河西健吾. Professionally active in the acting field with 116 known credits, he was formerly affiliated with Office Kaoru and is currently affiliated with Mause Promotion.
Kawanishi made his debut as a voice actor in 2006. In June 2010, he dubbed Sterling Knight for the first time in the role of Christopher in the project titled Starstruck. Later, in October 2015, he secured his first starring role in an anime series when he was cast as Augustus in Mobile Suit Gundam: Iron-Blooded Orphans.
Throughout his career, his work has garnered recognition from creators. Notably, Chika Umino, who is the original author of March Comes In Like a Lion, described Kawanishi as possessing a shining dark voice.
Ask the Vault
Ask anything about Kengo Kawanishi.
Frequent co-stars
Career timeline
Noble Reincarnation: Born Blessed, So I'll Obtain Ultimate Power
Demon Slayer: Kimetsu no Yaiba Infinity CastleKaiju No. 8: Mission ReconKOWLOON GENERIC ROMANCEHeadhunted to Another World: From Salaryman to Big Four!Detectives These Days Are Crazy!
WIND BREAKERKaiju No. 8Demon Slayer: Kimetsu no Yaiba -To the Hashira Training-Blue BoxOblivion Battery
Blue OrchestraKubo Won't Let Me Be InvisibleMy DaemonMy Clueless First FriendOVERTAKE!
Caressing My Hibernating BearBLUE LOCKChainsaw ManSkeleton Knight in Another WorldThe Genius Prince's Guide to Raising a Nation Out of Debt
Mushoku Tensei: Jobless ReincarnationTokyo RevengersThe Case Study of VanitasDemon Slayer: Kimetsu no Yaiba - The Hashira Meeting ArcBlue Period
The Misfit of Demon King AcademyTower of GodJosee, the Tiger and the FishWandering Witch: The Journey of ElainaThe Gymnastics Samurai
Kaguya-sama: Love Is WarFruits BasketDemon Slayer: Kimetsu no YaibaDemon Slayer: Kimetsu no YaibaAhiru no Sora
That Time I Got Reincarnated as a SlimeDOREIKU The AnimationRun with the WindBloom Into YouBatman Ninja
Akiba's Trip The AnimationAtom: The BeginningKabukibu!
Re:ZERO -Starting Life in Another World-Re:ZERO -Starting Life in Another World-Re:ZERO -Starting Life in Another World-Bungo Stray DogsMarch Comes In Like a Lion
GateCharlotteMobile Suit Gundam: Iron-Blooded OrphansSound! EuphoniumSHIMONETA: A Boring World Where the Concept of Dirty Jokes Doesn't Exist · Theme Song Performance
Haikyu!!Haikyu!!Haikyu!!Haikyu!!Noragami
Ace of the DiamondGolden TimeGolden TimeGolden TimeStrike the Blood
JoJo's Bizarre AdventureAnotherLittle Busters!
Naruto Shippuden the Movie: Blood PrisonDeadman Wonderland
Kanon
Full Filmography
129 titles- Noble Reincarnation: Born Blessed, So I'll Obtain Ultimate Power (2026) as Oscar Ararat (voice)
- Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025) as Muichiro Tokito (voice)
- Kaiju No. 8: Mission Recon (2025) as Soshiro Hoshina (voice)
- KOWLOON GENERIC ROMANCE (2025) as Yulong (voice)
- Headhunted to Another World: From Salaryman to Big Four! (2025) as Viper (voice)
- Detectives These Days Are Crazy! (2025) as Taro Nezu (voice)
- Batman Ninja vs. Yakuza League (2025) as Red Robin (voice)
- Mobile Suit Gundam: Iron-Blooded Orphans 10th Anniversary Short Film - Wedge of Interposition (2025) as Mikazuki Augus (voice)
- HYPNOSISMIC -Division Rap Battle- Interactive Movie (2025) as Rosho Tsutsujimori (voice)
- Demon Slayer: Kimetsu no Yaiba Special Edition Swordsmith Village Arc Part 2 (2025) as Muichiro Tokito (voice)
- Kaiju No. 8: Hoshina's Day Off (2025) as Soshiro Hoshina
- Mirage Queen's Elegant Vacations (2025) as Roshi (Voice)
- Demon Slayer: Kimetsu no Yaiba Special Edition Swordsmith Village Arc Part 1 (2025) as Muichiro Tokito (voice)
- WIND BREAKER (2024) as Taiga Tsugeura (voice)
- Kaiju No. 8 (2024) as Soshiro Hoshina (voice)
- Demon Slayer: Kimetsu no Yaiba -To the Hashira Training- (2024) as Muichiro Tokito (voice)
- Blue Box (2024) as Shoichiro Kishi (voice)
- Oblivion Battery (2024) as Shuto Kirishima (voice)
- YATAGARASU: The Raven Does Not Choose Its Master (2024) as Atsufusa (voice)
- DEAD DEAD DEMONS DEDEDEDE DESTRUCTION (2024) as Taro Miura (voice)
- Demon Slayer: Kimetsu no Yaiba ON STAGE Swordsmith Village Arc (2024) as Muichiro Tokito
- Zegapain STA (2024) as Hal Welt (voice)
- Acro Trip (2024) as Mashirou (voice)
- Dead Dead Demon's Dededede Destruction Part 2 (2024) as Tarō Miura (voice)
- Dead Dead Demon's Dededede Destruction Part 1 (2024) as Tarô Miura (voice)
- Blue Orchestra (2023) as Kohei Atsumi (voice)
- Kubo Won't Let Me Be Invisible (2023) as Junta Shiraishi (voice)
- My Daemon (2023) as Iori Kusanagi (voice)
- My Clueless First Friend (2023) as Daichi Hino (voice)
- OVERTAKE! (2023) as Satsuki Harunaga (voice)
- Demon Slayer: Kimetsu no Yaiba -To the Swordsmith Village- (2023) as Muichiro Tokito (voice)
- Yakitori: Soldiers of Misfortune (2023) as Erland Martonen (voice)
- Demon Slayer: Kimetsu no Yaiba - Entertainment District Decisive Battle Arc (2023) as Muichiro Tokito (voice)
- Demon Slayer: Kimetsu no Yaiba ON STAGE (2023) as Self
- Neko to Wakai se na (2023) as Yuuki (voice)
- Caressing My Hibernating Bear (2022) as Kou (voice)
- BLUE LOCK (2022) as Eita Otoya (voice)
- Chainsaw Man (2022) as Kurose (voice)
- Skeleton Knight in Another World (2022) as Sekt (voice)
- The Genius Prince's Guide to Raising a Nation Out of Debt (2022) as Manfred Earthwold (voice)
- Toku: Touken Ranbu: Hanamaru ~Setsugetsuka~ Tsuki no Maki (2022) as 南泉一文字
- Blue Thermal (2022) as Kaede Hatori (voice)
- ドクターストーン 龍水 (Dokutā Sutōn: RYUSUI) (2022) as Gen Asagiri
- Mushoku Tensei: Jobless Reincarnation (2021) as Almanfi the Radiant (voice)
- Tokyo Revengers (2021) as Nahoya Kawata (voice)
- The Case Study of Vanitas (2021) as Roland (voice)
- Demon Slayer: Kimetsu no Yaiba - The Hashira Meeting Arc (2021) as Muichiro Tokito (voice)
- Blue Period (2021) as Haruka Hashida (voice)
- Scarlet Nexus (2021) as Shiden Ritter (voice)
- Higehiro: After Being Rejected, I Shaved and Took in a High School Runaway (2021) as Endō (voice)
- Joran: The Princess of Snow and Blood (2021) as (voice)
- Joran: The Princess of Snow and Blood (2021) as Takeru Karasumori (voice)
- The Misfit of Demon King Academy (2020) as Nihid (voice)
- Tower of God (2020) as Prince (voice)
- Josee, the Tiger and the Fish (2020) as Yukichi (voice)
- Wandering Witch: The Journey of Elaina (2020) as Chara (voice)
- The Gymnastics Samurai (2020) as Hiroshi Okamachi (voice)
- Kakushigoto (2020) as Yuma Ato (voice)
- King's Raid: Successors of the Will (2020) as Roi (voice)
- number24 (2020) as Natsusa Yuzuki (voice)
- Kaguya-sama: Love Is War (2019) as Kō Ogino (voice)
- Fruits Basket (2019) as Ritsu Sōma (voice)
- Demon Slayer: Kimetsu no Yaiba (2019) as Yuichiro Tokito (voice)
- Demon Slayer: Kimetsu no Yaiba (2019) as Muichirō Tokitō (voice)
- Ahiru no Sora (2019) as Hasebe (voice)
- Dr. STONE (2019) as Asagiri Gen (voice)
- Cautious Hero: The Hero Is Overpowered but Overly Cautious (2019) as Mash (voice)
- NAMUAMIDABUTSU! -UTENA- (2019) as 不動明王
- Ultramarine Magmell (2019) as Inyou
- Amazing Stranger (2019) as Seijirou Kanmuri (voice)
- That Time I Got Reincarnated as a Slime (2018) as Gelmud (voice)
- DOREIKU The Animation (2018) as Itabashi Gekkou (Voice)
- Run with the Wind (2018) as Kousuke Sakaki (voice)
- Bloom Into You (2018) as Hiro-kun (voice)
- Batman Ninja (2018) as Red Robin / Tim Drake (voice)
- Mr. TONEGAWA Middle Management Blues (2018) as Jun'ichi Hagio (voice)
- Jingai-san no Yome (2018) as Hikurakawa Sora (voice)
- Hinamatsuri (2018) as Sabu (voice)
- Voice of Fox (2018) as Hu Li (voice)
- Akiba's Trip The Animation (2017) as Shouhei (voice)
- Atom: The Beginning (2017) as Shunsaku Ban (voice)
- Kabukibu! (2017) as Jin Ebihara (voice)
- Re:ZERO -Starting Life in Another World- (2016) as Lye Batenkaitos (voice)
- Re:ZERO -Starting Life in Another World- (2016) as Roy Alphard (voice)
- Re:ZERO -Starting Life in Another World- (2016) as Lye Batenkaitos / Roy Alphard (voice)
- Bungo Stray Dogs (2016) as John Steinbeck
- March Comes In Like a Lion (2016) as Rei Kiriyama (voice)
- ALL OUT!! (2016) as Shota Adachigahara (voice)
- BBK/BRNK (2016) as Maxim Arsenyevich Balakirev (voice)
- Re：ゼロから始める異世界生活 (2016) as Kengo Kawanishi
- Monster Strike The Movie: To The Place of Beginnings (2016) as Akira Kagetsuki (voice)
- Gate (2015) as Young Man (voice)
- Charlotte (2015) as Shichino (voice)
- Mobile Suit Gundam: Iron-Blooded Orphans (2015) as Mikazuki Augus (voice)
- Sound! Euphonium (2015) as Concert Band Member (voice)
- SHIMONETA: A Boring World Where the Concept of Dirty Jokes Doesn't Exist (2015) Theme Song Performance
- Food Wars! Shokugeki no Soma (2015) as Shoji Sato
- My Love Story!! (2015) as Class 3 Boy A (voice)
- Boruto: Naruto the Movie (2015) as Yurui (voice)
- Is It Wrong to Try to Pick Up Girls in a Dungeon? (2015) as Ibri Achaa (voice)
- The Anthem of the Heart (2015) as Kazuharu Yamaji (voice)
- Code Geass: Akito the Exiled 4: Memories of Hatred (2015) as (voice)
- Haikyu!! (2014) as Kitagawa Daiichi Member A (voice)
- Haikyu!! (2014) as Volleyball Player from Other School (voice)
- Haikyu!! (2014) as Shigeru Yahaba (voice)
- Haikyu!! (2014) as Student from Other School (voice)
- Noragami (2014) as Student D (voice)
- The Irregular at Magic High School (2014) as Raymond Sage Clark (voice)
- No Game No Life (2014) as Masses (voice)
- Aldnoah.Zero (2014) as Kisaki Matsuribi (voice)
- Knights of Sidonia (2014) as Mechanic (voice)
- Monthly Girls' Nozaki-kun (2014) as Male Student (voice)
- Aikatsu! The Movie (2014) as (voice)
- Ace of the Diamond (2013) as Wataru Kariba (voice)
- Golden Time (2013) as Male student (voice)
- Golden Time (2013) as Senior (voice)
- Golden Time (2013) as Kazuya (voice)
- Strike the Blood (2013) as Anchor (voice)
- Strike the Blood (2013) as Driver (voice)
- Strike the Blood (2013) as Island Guard (voice)
- Nagi-Asu: A Lull in the Sea (2013) as Gaku Egawa (voice)
- Puella Magi Madoka Magica the Movie Part III: Rebellion (2013) as School Boy (voice)
- JoJo's Bizarre Adventure (2012) as Terunosuke Miyamoto (voice)
- Another (2012) as Junta Nakao (voice)
- Little Busters! (2012) as Student D (voice)
- Naruto Shippuden the Movie: Blood Prison (2011) as Muku (young) (voice)
- Deadman Wonderland (2011) as Matayoshi (voice)
- Kanon (2006) as Audience (voice)
- KILLTUBE as Kikuchiyo (voice)
Frequently Asked Questions
What movies or TV shows is Kengo Kawanishi best known for?
Kengo Kawanishi is widely recognized for notable roles and projects including Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025), Kaiju No. 8: Mission Recon (2025), KOWLOON GENERIC ROMANCE (2025), Batman Ninja vs. Yakuza League (2025).
When and where was Kengo Kawanishi born?
Kengo Kawanishi was born on February 18, 1985 in Osaka, Japon.
How many credits does Kengo Kawanishi have?
Kengo Kawanishi has accumulated over 129 film and television credits across a career spanning from 2006 to 2026.
What is Kengo Kawanishi's background in cinema and television?
Kengo Kawanishi is a Japanese male voice actor born in Osaka on February 18, 1985. His blood type is A, and his stage name in Japanese is written as 河西健吾. He was formerly affiliated with Office Kaoru and is currently affiliated with Mause Promotion. Kawanishi debuted as a voice actor in 2006. In June 2010, he dubbed St...