'Games of Thrones' star Lena Headey thrilled Jimmy Kimmel with her appearance on his show, slipping effortlessly into her character of Cersei Lannister.
Although it is clear Lena is nothing like the haughty Queen she plays on screen, it was a mark of how distinctive her performance is, that her turn on 'Jimmy Kimmel Live!' left him almost without his usual wit, although he still planted a few corkers...
Watch Lena in action above.
'Game of Thrones' season 4 finale this week was hailed as one of the bloodiest, most dramatic storylines yet in the history of the show, which has gained a worldwide fan base since HBO first brought GRR Martin's books to screen.