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Andrew Koji (born 1987) is a British actor and martial artist. He had his breakout role as Ah Sahm in the Cinemax series Warrior (2019–2023). Koji went on to play Storm Shadow in Snake Eyes (2021), Yuichi "The Father" Kimura in Bullet Train (2022), and Zeek Kimura in Gangs of London (2025–present).
Koji started in the industry doing extra work and making short films as a teenager. At 18, he moved to Thailand while still training in martial arts and did some small jobs in the film industry. He subsequently worked in Japan's film industry for a few years, before returning to England to train at the Actors' Temple Studio in London. Eventually, Koji started getting more jobs in theatre and television in the UK. Regarding his opportunities there, he stated: "In the UK I would say my dual heritage has not particularly been advantageous. Opportunities for East Asian actors at the time was and still is quite limitedalthough things are changing."
Koji dropped out of university at the age of 19 to focus on acting and martial arts. In his twenties, Koji studied and competed in taekwondo and trained in Shaolin kung fu at the Shaolin Temple UK. He has written and produced his films, and has also worked as a stunt double; most notably on Fast & Furious 6. He has also performed with the Royal Shakespeare Company, at the Regent's Park Open Air Theatre, Hampstead Theatre, Royal Court, Charing Cross Theatre, and Ovalhouse among others.
By 2017, Koji was discouraged by a lack of television roles and considered a career change. His agent and his mother convinced him to submit an audition tape for the lead role of Ah Sahm in the Cinemax series Warrior, which he secured.
Based on an original idea by Bruce Lee for the 1972 series Kung Fu, that starred David Carradine, and was produced by filmmaker Justin Lin, Warrior is centered around a martial arts prodigy in the late 1870s who emigrates from China to the United States in search of his sister, only to be drawn into the Tong Wars of San Francisco. In a nod to Lee's idea for the character's ethnic background, Ah Sahm is of partial European ancestry, which Koji found fitting for the character and relatable due to his own ancestry. The first season premiered in April 2019, and the second season premiered in October 2020. A third season ran on HBO Max. Overall the series ran for three seasons and a total of 30 episodes from 2019 to 2023.
Koji played Storm Shadow in the 2021 film Snake Eyes, and assassin Yuichi Kimura in David Leitch's 2022 action film Bullet Train. In 2023 he appeared in the action-fantasy film Boy Kills World, directed by Moritz Mohr, and joined Netflix series Black Doves.
In May 2025, Koji was confirmed for the role of Ryu in the Street Fighter reboot film.
| 2007 | FB: Fighting Beat | Kali | |
| 2009 | Thai Gangster | ||
| 2011 | The Missing Day | Huan | |
| 2013 | Fast & Furious 6 | Undercover Police | Extra role (uncredited); stunt double for Sung Kang |
| Scrutiny | Stefan Aire | ||
| Above the Waist | Ken | Short film; also writer and producer Won Best Actor Award, Asian on Film Festival | |
| A Situation | Yuji | ||
| #aiww: The Arrest of Ai Weiwei | 1st Policeman / 1st Soldier | ||
| 2015 | Luck | Rai | |
| Deep Pan Fury | Katashi Kimoto | ||
| 2017 | Trendy | Estate Agent 1 | |
| 2021 | Snake Eyes | Tomisaburo Arashikage / Storm Shadow | |
| 2022 | Bullet Train | Yuichi Kimura | |
| 2023 | Seneca – On the Creation of Earthquakes | Felix | |
| 2024 | Boy Kills World | Basho | |
| 2025 | Worth the Wait | Scott | |
| 2026 | Street Fighter | Ryu | Post-production |
| TBA | High Stakes Holiday | David | Post-production |
| 2010, 2015 | Casualty | Keong Murong / Haro Reid | 2 episodes |
| 2012 | Narrow Escapes | WW2 Soldier | |
| Seconds from Disaster | ATC Officer-JAL 123 | Episode: "Terrified Over Tokyo" | |
| 2013 | The Wrong Mans | Jason | 3 episodes |
| 2014 | Film Lab Presents | Sam | Episode: "Deciding to Live" |
| 2015 | Frikjent | Chen Liang | 2 episodes |
| 2016 | Call the Midwife | Benny Su | Episode #5.3 |
| 2017 | Jade Dragon | Mikey | 2 episodes |
| Finding Akira | James | TV film | |
| 2018 | The Innocents | Andrew | 3 episodes |
| 2019 | American Gods | CEO | Episode: "The Greatest Story Ever Told" |
| Peaky Blinders | Brilliant Chang | 2 episodes | |
| 2019–2023 | Warrior | Ah Sahm | Main role; 30 episodes |
| 2024 | Black Doves | Jason Davies | 6 episodes |
| 2025–present | Gangs of London | Zeek Kimura | 6 episodes |
| 2026 | Steal | Darren Yoshida | 5 episodes |
| + !Year !Title !Role | ||
| 2017 | Final Fantasy XIV | Hien Rijin |
| 2024 | Erlang Shen | |
| + !Year !Title !Role !Production company | |||
| Star Wars Stage Show | Jedi | Weird and Wonderful | |
| Richard III | Richard | The Actors Temple | |
| A Streetcar Named Desire | Stanley Kowalski | The Actors Temple | |
| 2013 | The Fu Manchu Complex | Dr. Petrie | Moongate Productions/ Mark Cartwright Productions |
| The Arrest of Ai Weiwei | Policeman / Soldier | Hampstead Theatre | |
| The Forgotten of the Forgotten | Guo | Radar Festival | |
| Hidden | Jason/ Various other roles | Royal Court Theatre | |
| 2016 | In the Bar of a Tokyo Hotel | The Barman | Charing Cross Theatre |
| Shangri-La | Karma | Yellow Earth | |
| 2017 | Snow in Midsummer | Fang | RSC |
| A Tale of Two Cities | Jacques | Regents Park Open Air Theatre |
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