text: Hassan first started working on market stalls at an early age and started boxing at the age of 10. He began an amateur boxing career at the age of 17 where he won two British titles. Having sustained an injury in amateur boxing, he turned to running his own nightclubs and restaurants.
  Acting career
  Hassan started acting in television before his role in The Calcium Kid. He was cast as the leader of a fictional football firm in The Football Factory, alongside Danny Dyer and Frank Harper. The film's director Nick Love subsequently cast him in the primary supporting role for The Business.
  Hassan has had roles in films including The Ferryman, Batman Begins, Cass, Eastern Promises, and Clash of the Titans, in which he portrayed Ares, the ancient Greek god of war. In 2011, he played "The Boss", a shady police officer, in the British film noir Jack Falls. He played "Chavez" in Wrong Turn 3: Left for Dead.
  In 2016 he joined the HBO series Game of Thrones in Season 6 as Khal Forzo.
  Personal life
  Hassan is married and has two children: a son who is a professional football player, and a daughter, Belle, who appeared in the fifth series of Love Island in 2019.
  He was the first actor to be a director of a Nasdaq listed company. He is also a fan of Millwall.