Tributes are being paid to Game of Thrones actor Andrew Dunbar who died at home on Belfast on Christmas Eve. 

The popular extra appeared as the Theon Greyjoy (played by Alfie Allen) body double in the popular HBO series, as well as among the Stark men in the Battle of the Bastards. Dunbar also appeared in Irish comedy "Derry Girls" and " Line of Duty."

His death is not being treated as suspicious. 

In his 30s, Dunbar could have pursued acting full-time but preferred to split his time between extra work, DJing and art. 

His funeral will take place on Monday in Belfast. 

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To say we are shocked and saddened at the passing of Andrew Dunbar is an understatement. We have so many fond memories of the years Andrew worked with us. He was so versatile we could cast him in anything, he was such a talented performer he would always end up being featured, and he was so adored that he was always requested by productions again and again. He'll be remembered in his roles as a Stark and Theon Greyjoy's Double on Game of Thrones, a corrupt Police Officer on Line of Duty, the poor fella cornered by Colum on Derry Girls, and a Rebel on Krypton to name a few. But most of all he'll be remembered by his kind soul and infectious personality. Thank you for all you did for us Andrew. We will miss you dearly.

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"Andrew Dunbar was an actor who was also a stand-in as Theon on GoT," Alfie Allen wrote to Instagram.

"Extremely shocked and saddened to hear of his passing. To lose a loved one so young, I can only imagine what his family are going through.

"RIP Andrew xxx."

Game of Thrones' Head of Crowd Make-Up Pamela Smyth also paid tribute, calling Andrew a "beautiful soul."

"Even among the thousands of extras that came through the crowd room on Thrones – Andrew always stood out. Always professional and mannerly with a big broad beaming smile. A beautiful soul – he will be missed by all the GoT family," she said.

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RIP to a great guy I had the immense pleasure of working with on Game of Thrones. A true gent who will be missed#AndrewDunbar #RIP #GoT #GameofThrones #filming #gentleman #hero pic.twitter.com/sPTkIrp3vc

— Jesse Morris (@SirJessmo) December 26, 2019

A statement from The Extras Department read: "To say we are shocked and saddened at the passing of Andrew Dunbar is an understatement.

"We have so many fond memories of the years Andrew worked with us. He was so versatile we could cast him in anything, he was such a talented performer he would always end up being featured, and he was so adored that he was always requested by productions again and again.

"He'll be remembered in his roles as a Stark and Theon Greyjoy's Double on Game of Thrones, a corrupt Police Officer on Line of Duty, the poor fella cornered by Colum on Derry Girls, and a Rebel on Krypton to name a few.

"But most of all he'll be remembered by his kind soul and infectious personality. Thank you for all you did for us Andrew. We will miss you dearly."