Hassan plays one of the five Dothraki leaders in the HBO series and auditioned for the series three times before getting a part.

To take on the role, the actor had to be trained to speak the fictional Dothraki language. He filmed in Northern Ireland.

It is unclear if his character will return for future seasons, but his part in the upcoming season affects the main characters.

Hassan is the son of a Turkish Cypriot family originally from Nicosia. He started his career in 2002 with television roles, including EastEnders, Casualty and Dracula.