Tomoyuki Oka
Known for Acting · 276 credits
- Born
- 1991-06-12 (age 34)
- Place of birth
- Maebashi, Gunma Prefecture, Japan
- Also known as
- Great-O-Khan · Great-O-Kharn · The Great-O-Kharn · The Great-O-Khan
Biography
Tomoyuki Oka, better known by his ring name Great-O-Khan, is a Japanese professional wrestler signed to New Japan Pro-Wrestling (NJPW), where he is a member of the United Empire stable. A former NJPW World Television Champion and final official King of Pro Wrestling Champion, he is also a four-time IWGP Tag Team Champion with Jeff Cobb (2x), Aaron Henare, and Callum Newman. In 2026, he won the NEVER Openweight 6-Man Tag Team Championship alongside Henare and Will Ospreay. In recognition of his in-ring ability, he received Tokyo Sports’ Technique Award in 2021, Fighting Spirit Award in 2022, and Best Tag Team Award in 2022 alongside United Empre stablemate Jeff Cobb.
Oka began training with NJPW in 2015 and debuted in 2016 as part of the company’s Young Lion system before heading to the United Kingdom for an excursion with Revolution Pro Wrestling (RevPro), where he reinvented himself as Great-O-Khan and later captured the Undisputed British Heavyweight Championship. He returned to NJPW in 2020 as the first major member of Will Ospreay’s United Empire faction and quickly became one of the promotion’s most distinctive heavyweights, blending amateur wrestling, submission grappling, and his eccentric imperial persona. Known for his unconventional matches and crowd interaction, O-Khan gained further momentum in 2024 after reaching the G1 Climax playoffs and unsuccessfully challenging Tetsuya Naito for the IWGP World Heavyweight Championship. In 2025, he was ranked No. 137 in the Pro Wrestling Illustrated PWI 500.
Known For
TV Shows (3)
Movies (273)
NJPW Wrestling Dontaku 2022
2022
as Great-O-Khan
My Dad Is a Heel Wrestler
2018
NJPW The New Beginning In Osaka 2026
2026
as Great-O-Khan
NJPW Dominion 6.9 In Osaka-Jo Hall ~ Best of the Super Junior 31 Final ~
2024
as Great-O-Khan
NJPW Road to The New Beginning 2026 - Day 6
2026
as Great-O-Khan
NJPW Wrestle Grand Slam In Tokyo Dome
2021
as Great-O-Khan
NJPW New Year Dash !! 2018
2018
as Tomoyuki Oka
NJPW The New Beginning In Osaka 2025
2025
as Great-O-Khan
NJPW Destruction In Ryogoku 2023
2023
as Great-O-Khan
AEW x NJPW Presents Forbidden Door 2022
2022
as Great-O-Khan
NJPW 51st Anniversary Event & New Japan Cup 2023: Day 2
2023
as Great-O-Khan
NJPW Castle Attack 2021 - Day 2
2021
as Great-O-Khan
NJPW G1 Climax 34: Day 3
2024
as Great-O-Khan
NJPW Windy City Riot 2022
2022
as Great O-Khan
NJPW Dominion 6.15 In Osaka-Jo Hall
2025
as Great-O-Khan
NJPW G1 Climax 33: Day 15
2023
as Great-O-Khan
NJPW G1 Climax 33: Day 19 (Final)
2023
as Great-O-Khan
NJPW Dominion 6.4 in Osaka-jo Hall
2023
as Great-O-Khan
NJPW The New Beginning In Sapporo 2023 - Day 2
2023
as Great-O-Khan
NJPW x AEW x CMLL x ROH x STARDOM: Wrestle Dynasty
2025
as Great-O-Khan
NJPW Road to Wrestling Dontaku 2026 - Day 3
2026
as Great-O-Khan
NJPW G1 Climax 30: Day 19 (Final)
2020
as Great-O-Khan
NJPW New Japan Cup 2023: Day 3
2023
as Great-O-Khan
NJPW G1 Climax 33: Day 18
2023
as Great-O-Khan
NJPW 45th Anniversary Show
2017
as Tomoyuki Oka
NJPW Wrestling Dontaku 2018 - Night 1
2018
as Tomoyuki Oka
NJPW G1 Climax 32: Day 20 (Final)
2022
as Great-O-Khan
NJPW Wrestling Toyonokuni 2017
2017
as Tomoyuki Oka
NJPW 52nd Anniversary Event & New Japan Cup 2024 - Day 1
2024
as Great-O-Khan
NJPW Wrestle Grand Slam in MetLife Dome: Night 2
2021
as Great-O-Khan
NJPW G1 Climax 34: Day 7
2024
as Great-O-Khan
NJPW G1 Climax 34: Day 8
2024
as Great-O-Khan
NJPW The New Beginning in Osaka 2024
2024
as Great O-Khan
NJPW G1 Climax 33: Day 13
2023
as Great-O-Khan
NJPW The New Beginning In Sapporo 2023 - Day 1
2023
as Great-O-Khan
RevPro Uprising 2019
2019
as The Great-O-Kharn
NJPW Sakura Genesis 2026
2026
as Great-O-Khan
NJPW Wrestling Dontaku 2024 - Night 2
2024
as Great-O-Khan
NJPW x STARDOM: Historic X-Over II
2024
as Great-O-Khan
NJPW G1 Climax 34: Day 10
2024
as Great-O-Khan
NJPW Wrestle Kingdom 17: Night 1 in Tokyo Dome
2023
as Great-O-Khan
NJPW Wrestling Dontaku 2021 - Night 1
2021
as Great-O-Khan
NJPW Capital Collision 2022
2022
as Great-O-Khan
NJPW G1 Climax 34: Day 4
2024
as Great-O-Khan
NJPW New Japan Cup 2018 - Day 2
2018
as Tomoyuki Oka
NJPW New Japan Cup 2026 - Day 10
2026
as Great-O-Khan
NJPW G1 Climax 33: Day 17
2023
as Great-O-Khan
NJPW Destruction in Kobe 2024
2024
as Great-O-Khan
NJPW Blue Justice XV - Wrestling Life 40th Anniversary Yuji Nagata
2025
as Great-O-Khan
NJPW The New Beginning In Sapporo 2024 - Day 2
2024
as Great-O-Khan
NJPW Shingo Takagi's 20th Debut Anniversary Event
2024
as Great-O-Khan
NJPW G1 Climax 34: Day 18
2024
as Great-O-Khan
NJPW Destruction in Kobe 2017
2017
as Tomoyuki Oka
NJPW G1 Climax 34: Day 15
2024
as Great-O-Khan
NJPW Battle Autumn 2022 - Day 16
2022
as Great-O-Khan
NJPW G1 Climax 27: Day 4
2017
as Tomoyuki Oka
NJPW Sakura Genesis 2021
2021
as Great-O-Khan
NJPW Wrestling Dontaku 2018 - Night 2
2018
as Tomoyuki Oka
NJPW New Japan Cup 2026 - Day 5
2026
as Great-O-Khan
NJPW Sakura Genesis 2024
2024
as Great-O-Khan
NJPW New Japan Cup 2021 - Day 12
2021
as Great-O-Khan
NJPW The New Beginning in Nagoya
2024
as Great-O-Khan
NJPW G1 Climax 34: Day 11
2024
as Great-O-Khan
NJPW G1 Climax 34: Day 13
2024
as Great-O-Khan
NJPW New Years Golden Series 2022 - Day 1
2022
as Great-O-Khan
NJPW The New Beginning In Sapporo 2024 - Day 1
2024
as Great O-Khan
NJPW World Tag League 2025 - Day 2
2025
as Great-O-Khan
NJPW Wrestling Dontaku 2017
2017
as Tomoyuki Oka
NJPW New Year Dash !! 2023
2023
as Great-O-Khan
NJPW Wrestling Dontaku 2024 - Night 1
2024
as Great-O-Khan
NJPW Dominion 6.11 in Osaka-jo Hall
2017
as Tomoyuki Oka
NJPW G1 Climax 32: Day 8
2022
as Great-O-Khan
NJPW G1 Climax 32: Day 4
2022
as Great-O-Khan
NJPW Dominion 6.12 In Osaka-Jo Hall
2022
as Great-O-Khan
NJPW Wrestle Kingdom 19
2025
as Great-O-Khan
NJPW The New Beginning in Nagoya
2021
as Great-O-Khan
NJPW Wrestling Dontaku 2025 - Night 2
2025
as Great-O-Khan
NJPW New Japan Cup 2023: Day 4
2023
as Great-O-Khan
NJPW G1 Climax 31: Day 17
2021
as Great-O-Khan
NJPW Road to Wrestling Dontaku 2026 - Day 1
2026
as Great-O-Khan
NJPW World Tag League 2025 - Day 9
2025
as Great-O-Khan
NJPW G1 Climax 31: Day 15
2021
as Great-O-Khan
NJPW G1 Climax 34: Day 19 (Final)
2024
as Great-O-Khan
NJPW New Japan Cup 2026 - Day 1
2026
as Great-O-Khan
NJPW G1 Climax 35: Day 19 (Final)
2025
as Great-O-Khan
NJPW 54th Anniversary Event & New Japan Cup 2026 - Day 3
2026
as Great-O-Khan
NJPW G1 Climax 31: Day 19 (Final)
2021
as Great-O-Khan
NJPW Wrestle Kingdom 17 Pre-Show
2023
as Great O-Khan
NJPW G1 Climax 27: Day 9
2017
as Tomoyuki Oka
NJPW G1 Climax 32: Day 11
2022
as Great-O-Khan
NJPW G1 Climax 31: Day 3
2021
as Great-O-Khan
NJPW G1 Climax 27: Day 8
2017
as Tomoyuki Oka
NJPW G1 Climax 35: Day 9
2025
as Great-O-Khan
NJPW New Japan Cup 2018 - Day 4
2018
as Tomoyuki Oka
NJPW Wrestling Dontaku 2021 - Night 2
2021
as Great-O-Khan
NJPW New Year Dash !! 2021
2021
as The Great O-Khan
NJPW G1 Climax 32: Day 1
2022
as Great-O-Khan
NJPW Road to The New Beginning 2026 - Day 8
2026
as Great-O-Khan
NJPW New Japan Cup 2025 - Day 2
2025
as Great-O-Khan
NJPW New Year Dash !! 2026
2026
as Great-O-Khan
NJPW G1 Climax 33: Day 1
2023
as Great-O-Khan
NJPW New Year Dash!! 2025
2025
as Great-O-Khan
NJPW G1 Climax 32: Day 12
2022
as Great-O-Khan
NJPW G1 Climax 31: Day 13
2021
as Great-O-Khan
NJPW G1 Climax 34: Day 14
2024
as Great-O-Khan
NJPW World Tag League 2025 - Day 13
2025
as Great-O-Khan
NJPW World Tag League 2025 - Day 17 (Final)
2025
as Great-O-Khan
NJPW Wrestle Kingdom 20
2026
as Great-O-Khan
NJPW G1 Climax 33: Day 16
2023
as Great-O-Khan
NJPW Road to Wrestling Dontaku 2026 - Day 2
2026
as Great-O-Khan
NJPW G1 Climax 34: Day 5
2024
as Great-O-Khan
NJPW Wrestling Dontaku 2026 - Day 2
2026
as Great-O-Khan
NJPW Wrestling Dontaku 2026 - Day 1
2026
as Great-O-Khan
NJPW G1 Climax 32: Day 6
2022
as Great-O-Khan
NJPW G1 Climax 34: Day 12
2024
as Great-O-Khan
NJPW New Japan Soul 2024: Day 2
2024
as Great-O-Khan
NJPW New Years Golden Series 2022 - Day 6
2022
as Great-O-Khan
NJPW Power Struggle ~ Super Junior Tag League 2024
2024
as Great-O-Khan
NJPW Wrestle Kingdom 16: Night 2
2022
as Great-O-Khan
NJPW G1 Climax 27: Day 12
2017
as Tomoyuki Oka
About Tomoyuki Oka
Tomoyuki Oka, better known by his ring name Great-O-Khan, is a Japanese professional wrestler signed to New Japan Pro-Wrestling (NJPW), where he is a member of the United Empire stable. A former NJPW World Television Champion and final official King of Pro Wrestling Champion, he is also a four-time IWGP Tag Team Champion with Jeff Cobb (2x), Aaron Henare, and Callum Newman. In 2026, he won the NEVER Openweight 6-Man Tag Team Championship alongside Henare and Will Ospreay. In recognition of his in-ring ability, he received Tokyo Sports’ Techniq… With 276 credits spanning from 2005 to 2026, Tomoyuki Oka has appeared in 273 films and 3 TV shows.
Fans searching for Tomoyuki Oka movies, Tomoyuki Oka filmography, or the latest projects starring Tomoyuki Oka can stream many of these titles on CineFlixo, free and in HD, with no subscription required.
Most Popular Tomoyuki Oka Movies
- NJPW Wrestling Dontaku 2022 (2022) — as Great-O-Khan
- My Dad Is a Heel Wrestler (2018)
- NJPW The New Beginning In Osaka 2026 (2026) — as Great-O-Khan
- NJPW Dominion 6.9 In Osaka-Jo Hall ~ Best of the Super Junior 31 Final ~ (2024) — as Great-O-Khan
- NJPW Road to The New Beginning 2026 - Day 6 (2026) — as Great-O-Khan
Where to Watch Tomoyuki Oka Films
Most Tomoyuki Oka movies and series are available to stream on CineFlixo in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Tomoyuki Oka, check our movies catalogue and browse page.