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Who plays Ser Harrold Westerling in House of the Dragon? - Graham McTavish
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House of the Dragon cast: Where you've seen the actors before
9. Who plays Ser Harrold Westerling in House of the Dragon? - Graham McTavish
Fans of Outlander will immediately recognise Graham thanks to his roles on the series. Elsewhere on TV, Graham is also known for his work in The Witcher, Lucifer, Preacher, 24 and Prison Break. Graham also played King Atlan in 2018’s Aquaman and played Dwalin in the Hobbit movies. [Alamy]
