Byron Gibson is an English actor and stunt actor from Cambridge England He is a former construction worker street market trader Thai boxing coach and professional fight promoter He was the first person to promote and establish Muay Thai shows in Cambridge in 1990s with former ITV Saturday Grandstand wrestling star Steve Logan His Thai boxing school housed three Professional Muay Thai Champions He first entered the movie business in 2008 when JeanClaude Van Damme cast him as a gangster in The Eagle Path aka Full Love Byron was cast as a stunt performer in The Hangover Part 2 in a bar fight in the flashback scenes with a young Bradley Cooper Photos from the scene were used in the end credits photo Montague He is known for the controversial torture scene in Only God Forgives directed by Nicolas Winding Refn Nicolas liked his name Byron so much he named the character in the film after him instead of Dimitri Byron has worked under many award winning directors such as Jerome Salle and John Woo Most recently he starred in Brutal A Taste of Violence with Parkour legend David Belle