has this actor worked in theatres?
Yes, in the National Theatre's adaptation of "War Horse"
Kit Harington
 he landed the role of Albert in the National Theatre's adaptation of "War Horse"
game of thrones episode 2 season 1 summary Eddard Stark and his daughters accompany the king's entourage to King's Landing to occupy the post of Hand of the King, Tyrion Lannister joins Jon in his travel to the Wall, and the newly wed Daenerys goes with her husband's "khalasar" to the city of Vaes Dothrak. Meanwhile, in Winterfell a grieving Catelyn Stark watches over her unconscious son Bran what does this kingsroad refers to? The Kingsroad" is the second episode of the first season of the HBO medieval fantasy television series "Game of Thrones" where is it filmed? The Paint Hall studio and Redhall Estate, in Ballycarry can you name some of the characters of the tv series you mentioned? Lord Eddard "Ned" Stark,  Catelyn,  Robb ,Sansa , Arya, Bran, Rickon, Jon Snow, and many more who is its creator? David Benioff and D. B. Weiss which actor plays the above mentioned last character? Kit Harington
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Kit Harington [SEP] Early work in theatre (2008–2010)
Before acting, Harington originally wanted to become a journalist. While still at drama school, he landed the role of Albert in the National Theatre's adaptation of "War Horse". The play won two Olivier Awards and gained Harington a great deal of recognition. He was later cast in his second play "Posh", a dark ensemble comedy about upper-class men attending Oxford University.