Cast & creator

Tomoyuki Oka

1991-06-12 (age 35) Maebashi, Gunma Prefecture, Japan Website IMDb

Best known for All Elite Wrestling: Dynamite, All Elite Wrestling: Dynamite, World Wonder Ring Stardom

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.

Also known as: Great-O-Khan, Great-O-Kharn, The Great-O-Kharn, The Great-O-Khan

Movies

336

film credits

Series

television credits

Career

340

2005–2026 · acting roles

Credit score

7.4

average across scored titles

Signature credits

Known for

Ordered by popularity

★ 7.9

All Elite Wrestling: Dynamite

Great O-Khan · 2019

★ 7.9

All Elite Wrestling: Dynamite

Great-O-Khan · 2019

★ 8.8

World Wonder Ring Stardom

Great-O-Khan · 2011

NJPW New Japan Cup

Great-O-Khan · 2005

NJPW Dominion 6.9 In Osaka-Jo Hall ~ Best of the Super Junior 31 Final ~ 2024

Great-O-Khan · 2024

Across film & television

Filmography (340)

Showing 340 of 340 credits

Series

★ 7.9

All Elite Wrestling: Dynamite

Great O-Khan

2019

Series

★ 7.9

All Elite Wrestling: Dynamite

Great-O-Khan

2019

Series

★ 8.8

World Wonder Ring Stardom

Great-O-Khan

2011

Series

NJPW New Japan Cup

Great-O-Khan

Tomoyuki Oka

Known for

All Elite Wrestling: Dynamite

All Elite Wrestling: Dynamite

World Wonder Ring Stardom

NJPW New Japan Cup

NJPW Dominion 6.9 In Osaka-Jo Hall ~ Best of the Super Junior 31 Final ~ 2024

Filmography (340)

All Elite Wrestling: Dynamite

All Elite Wrestling: Dynamite

World Wonder Ring Stardom

NJPW New Japan Cup

NJPW Dominion 6.9 In Osaka-Jo Hall ~ Best of the Super Junior 31 Final ~ 2024

NJPW Dominion 6.4 in Osaka-jo Hall 2023

NJPW Dominion 6.11 in Osaka-jo Hall 2017

NJPW Road to Destruction 2026 - Day 6

NJPW Road to King of Pro-Wrestling 2026 - Day 1

NJPW Dominion 6.14 In Osaka-Jo Hall 2026

NJPW Road to Destruction 2026 - Day 7

NJPW Dominion 6.12 In Osaka-Jo Hall 2022

NJPW Road to Destruction 2026 - Day 4

NJPW Road to Destruction 2026 - Day 2

NJPW Road to Destruction 2026 - Day 8

NJPW Road to Destruction 2026 - Day 5

NJPW Road to Destruction 2026 - Day 9

NJPW Road to Destruction 2026 - Day 3

NJPW Destruction In Kobe 2026

NJPW Road to Destruction 2026 - Day 11

NJPW Road to Destruction 2026 - Day 1

NJPW Road to King of Pro-Wrestling 2026 - Day 2

NJPW Dominion 6.15 In Osaka-Jo Hall 2025

NJPW Road to The New Beginning 2026 - Day 5

AEW x NJPW Presents Forbidden Door 2022

NJPW G1 Climax 36 - Day 19 (Final)

NJPW Road to Wrestling Dontaku 2026 - Day 2

NJPW New Japan Cup 2026 - Day 7

NJPW The New Beginning In Osaka 2026

NJPW Road to The New Beginning 2026 - Day 10

NJPW Yuji Nagata Produce Blue Justice XIX ~Aogi Futotsu~

NJPW New Japan Cup 2026 - Day 8

NJPW Road to Tokyo Dome 2025 - Day 1

NJPW World Tag League 2025 - Day 17 (Final)

NJPW New Japan Cup 2026 - Day 5

NJPW Road to The New Beginning 2026 - Day 6

NJPW Road to Wrestling Dontaku 2026 - Day 3

NJPW New Japan Cup 2026 - Day 12 (Final)

NJPW Wrestling Dontaku 2026 - Day 2

NJPW New Japan Road in Karatsu 2026 ~ Ignition to Dominion

RevPro & NJPW: Global Wars UK

NJPW Road to The New Beginning 2026 - Day 7

NJPW Best of the Super Junior 25 - Day 1

NJPW Road to Wrestling Dontaku 2026 - Day 4

NJPW Road to Wrestling Dontaku 2026 - Day 8

NJPW G1 Climax 36 - Day 9

NJPW Yuji Nagata Produce Blue Justice XVII ~ Aoyi Transition ~

NJPW New Year Dash !! 2026

NJPW Castle Attack 2021 - Day 2

NJPW Road to Wrestling Dontaku 2026 - Day 7

NJPW Road to Tokyo Dome 2025 - Day 2

NJPW Road to The New Beginning 2026 - Day 1

NJPW Road to The New Beginning 2026 - Day 2

NJPW G1 Climax 36 - Day 16

NJPW Wrestling Dontaku 2026 - Day 1

NJPW Yuji Nagata Produce Blue Justice XVIII

NJPW New Japan Cup 2026 - Day 10

NJPW Road to The New Beginning 2026 - Day 3

NJPW G1 Climax 36 - Day 10

NJPW World Tag League 2025 - Day 16

NJPW New Japan Cup 2022 - Day 10

NJPW New Japan Cup 2022 - Day 8

NJPW New Japan Cup 2025 - Day 4

NJPW New Japan Cup 2022 - Day 15 (Final)

NJPW Road to The New Beginning 2026 - Day 9

NJPW World Tag League 2025 - Day 15

NJPW Road to The New Beginning 2026 - Day 8

NJPW New Japan Cup 2021 - Day 9

NJPW Road to Wrestling Dontaku 2026 - Day 5

NJPW Road to Tokyo Dome 2025 - Day 3

NJPW G1 Climax 36 - Day 17

NJPW World Tag League 2025 - Day 1