Los Angeles - Tamer Hassan will star in the forthcoming series of Game of Thrones.
The 47-year-old former EastEnders actor has revealed he has joined the fantasy drama based on the books by George R. Martin for its seventh series, which will air on HBO in April, and "loved" every minute of it.
Speaking exclusively to BANG showbiz at the premiere of Breakdown in London's Odeon in Covent Garden on he said: "I just finished doing Game of Thrones, I loved it. I can't say too much about it but I'm part of that."
The series stars Emilia Clarke as Queen of Dragons Daenerys Targaryen and Kit Harington as Jon Snow, who took over as the Lord Commander of the Knight's Watch in the last series.
Fans of the show are hoping that Snow, who is the illegitimate son of Ned Stark, will be resurrected from the dead after he was brutally murdered by his watchmen during a tense cliffhanger.
And while he couldn't comment on the plot line because the cast are sworn to secrecy, Tamer let slip that he had to learn a whole new language for his mystery part.
He explained: "It was lovely, it was a great job. It was wonderful to be there. You'll see me quite a bit, it's exciting what you're going to see.
"Learning that Dothraki language was a feat in itself... so I've given you a little bit but I'm not going to say too much!"