Jun Kasai (葛西 純, Kasai Jun) (born September 9, 1974) is a Japanese professional wrestler, primarily competing for Pro Wrestling Freedoms. Dubbed the Crazy Monkey (クレイジーモンキー, Kureijī Monkī) for his violent and often self-harmful style of hardcore wrestling, Kasai is considered a breakthrough talent in Japanese wrestling, able to work both hardcore and technical styles. Outside Freedoms, Kasai has worked for the original Pro Wrestling Zero-One, Hustle, Ice Ribbon, Combat Zone Wrestling (CZW) and Big Japan Pro Wrestling (BJW).
He also has competed for the WWE, where he currently holds the WWE Tag Team Championship alongside Masashi Takeda. Kasai has also competed in both editions of WWE's Tournament of Death, winning the second edition in 2024.
Championships and accomplishments[]
- All Japan Pro Wrestling
- Gaora TV Championship (1 time)
- Apache Pro-Wrestling Army
- WEW World Tag Team Championship (2 times) – with Jaki Numazawa (1) and Tomoaki Honma (1)
- Big Japan Pro Wrestling
- WEW Hardcore Tag Team Championship (1 time) – with The W*NGer
- BJW Tag Team Championship (3 times) – with Jaki Numazawa
- Combat Zone Wrestling
- CZW Ultraviolent Underground Championship (1 time)
- CZW World Junior Heavyweight Championship (1 time)
- CZW World Tag Team Championship (1 time) – with Men's Teioh
- CZW Tournament of Death (2014)
- DDT Pro-Wrestling
- DDT Extreme Championship (1 time)
- Dove Pro Wrestling
- Dove Tag Team Championship (1 time) – with Gunso
- Japan Indie Awards
- Best Bout Award (2009) vs. Ryuji Ito on November 20
- Ice Ribbon
- International Ribbon Tag Team Championship (1 time) – with Miyako Matsumoto
- IWA East Coast
- Masters of Pain (2006)
- Pro Wrestling Freedoms
- King of Freedom World Championship (5 times)
- King of Freedom World Tag Team Championship (1 time) – with Masashi Takeda
- Pro Wrestling Illustrated
- Ranked No. 248 of the top 500 singles wrestlers in the PWI 500 in 2022
- Tokyo Sports
- Match of the Year Award (2009) vs. Ryuji Ito on November 20
- Wrestle-1
- UWA World Trios Championship (1 time) – with Nosawa Rongai and Shuji Kondo
- Wrestle-1 Tag Team Championship (2 times) – with Manabu Soya
- WWE
- WWE Tag Team Championship (1 time; current) – Masashi Takeda
- WWE Tournament of Death II (2024)