
Tomoyuki Oka
Acting
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

A world-class roster of diverse male and female wrestlers give fans a new wrestling experience for the first time in 20 years.
All Elite Wrestling: Dynamite

Stardom World is the VOD network for World Wonder Ring Stardom. WWR Stardom is a Japanese women's promotion started in 2011 featuring matches of many varieties including high speed octane action, long brutal brawls, and even costume battle royals. In 2019, the promotion was acquired by Bushiroad and has since become one of the top wrestling promotions in Japan.
Stardom on Stardom World

Takashi Omura was once a popular professional wrestler, but he isn't popular anymore. He now wears a cockroach mask and wrestles as a villain. He is married to Shiori and they have an elementary school aged son named Shota. Takashi and Shiori have not yet told their son what Takashi does for a living. One day, Shota finds out that Takashi is a professional wrestler and a villain with a cockroach mask. Shota is shocked and tells a lie to his classmate that his dad is a popular professional wrestler.
My Dad Is a Heel Wrestler

The NJPW New Japan Cup is an annual single-elimination professional wrestling tournament held by New Japan Pro-Wrestling (NJPW) since 2005. It is considered the second most prominent heavyweight tournament in NJPW, after the G1 Climax which follows a round-robin format.
NJPW New Japan Cup

Wrestling Dontaku 2022 was a professional wrestling pay-per-view (PPV) event promoted by New Japan Pro Wrestling (NJPW) that took place on May 1, 2022, at the Fukuoka PayPay Dome in Fukuoka, Japan, headlined by Kazuchika Okada (c) vs. Tetsuya Naito for the IWGP World Heavyweight Championship.
NJPW Wrestling Dontaku 2022

The eighteenth night of G1 Climax 33, featuring two semifinal matches, took place at Ryogoku Kokugikan in Sumida, Tokyo, Japan on August 12, 2023
NJPW G1 Climax 33: Day 18

NJPW New Year Dash!! 2018 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on January 5, 2018, at Korakuen Hall in Tokyo, Japan, and was headlined by CHAOS (Gedo, Hirooki Goto, Kazuchika Okada, Will Ospreay & YOSHI-HASHI) vs. Los Ingobernables de Japon (BUSHI, EVIL, Hiromu Takahashi, SANADA & Tetsuya Naito).
NJPW New Year Dash !! 2018

The sixth night of Road to The New Beginning 2026 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on February 2, 2026, at Korakuen Hall in Tokyo, Japan.
NJPW Road to The New Beginning 2026 - Day 6

The nineteenth and final night of the tournament, featuring the match to crown the G1 Climax 33 winner, took place at Ryogoku Kokugikan in Sumida, Tokyo, Japan on August 13th, 2023.
NJPW G1 Climax 33: Day 19 (Final)

AEW x NJPW: Forbidden Door was a co-produced professional wrestling event featuring American promotion AEW and Japanese promotion NJPW. It took place on June 26, 2022 at the United Center in Chicago and featured 13 matches, including 4 on the pre-show. In the main event, Jon Moxley defeated Hiroshi Tanahashi to become the interim AEW World Champion. Other notable matches included Jay White defeating Adam Page, Kazuchika Okada, and Adam Cole in a four-way match to retain the IWGP World Heavyweight Championship, Pac becoming the inaugural AEW All-Atlantic Champion in a four-way match, and Claudio Castagnoli making his AEW debut by defeating Zack Sabre Jr. The event also featured special appearances by Juice Robinson and Katsuyori Shibata.
AEW x NJPW Presents Forbidden Door 2022

NJPW 51st Anniversary Show was a professional wrestling event promoted by New Japan Pro Wrestling. The event took place on March 6, 2023 in Tokyo, Japan at the Ota City General Gymnasium. It also included the 2nd night of the New Japan Cup 2023.
NJPW 51st Anniversary Event & New Japan Cup 2023: Day 2

The fifteenth night of the tournament took place on August 8th, 2023 at Yokohama Budokan in Yokohama, Kanagawa, Japan.
NJPW G1 Climax 33: Day 15

NJPW Destruction in Ryogoku 2023 was a professional wrestling event promoted by New Japan Pro Wrestling (NJPW) that took place on October 9, 2023, at Ryogoku Kokugikan in Tokyo, Japan, and was headlined by SANADA (c) vs. EVIL for the IWGP World Heavyweight Championship.
NJPW Destruction In Ryogoku 2023

The New Beginning in Osaka (2024) was a professional wrestling event promoted by New Japan Pro Wrestling (NJPW). The event took place at the Osaka Prefectural Gymnasium in Osaka, Japan on February 11, 2024.
NJPW The New Beginning in Osaka 2024

The New Beginning in Osaka 2026 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on February 11, 2026, at EDION Arena Osaka in Osaka, Japan, and was headlined by Yota Tsuji (c) vs. Jake Lee for the IWGP World Heavyweight Championship.
NJPW The New Beginning In Osaka 2026

The third night of Road to Wrestling Dontaku 2026 took place on April 24, 2026, at Texport Imabari in Imabari, Ehime, Japan.
NJPW Road to Wrestling Dontaku 2026 - Day 3

NJPW Wrestle Grand Slam in Tokyo Dome was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on July 25, 2021, at the Tokyo Dome in Tokyo, Japan, headlined by Shingo Takagi (c) vs. Hiroshi Tanahashi for the IWGP World Heavyweight Championship.
NJPW Wrestle Grand Slam In Tokyo Dome

NJPW Dominion 6.9 in Osaka-Jo Hall was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW). The event took place on June 9, 2024, at Osaka-Jo Hall in Osaka, Japan, and was headlined by the Best of the Super Junior 31 Final Match between El Desperado and Taiji Ishimori.
NJPW Dominion 6.9 In Osaka-Jo Hall ~ Best of the Super Junior 31 Final ~

NJPW 45th Anniversary Event took place on March 6, 2017 from the Ota City General Gymnasium in Tokyo, Japan. NJPW Anniversary Event celebrates the anniversary of the first event held by NJPW on March 6, 1972. The main event for the 45th Anniversary show was Kazuchika Okada taking on Tiger Mask W.
NJPW 45th Anniversary Show

The New Beginning in Sapporo 2023 - Night 2 was a professional wrestling event promoted by New Japan Pro Wrestling (NJPW). The event took place at the Hokkaido Prefectural Sports Center in Sapporo, Hokkaido, Japan, on February 5, 2023.