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1 of 8Helen Sloan—HBO; Warner Bros. -
2 of 8Natalia Tena as Osha and Nymphadora TonksHBO; Warner Bros. Pictures -
3 of 8David Bradley as Walder Frey and Argus FilchHBO; Warner Bros. Pictures -
4 of 8Ciarán Hinds as Mance Rayder and Aberforth DumbledoreHBO; Warner Bros. Pictures -
5 of 8Michelle Fairley as Catelyn Stark and Mrs. GrangerHBO; Warner Bros. Pictures -
6 of 8Freddie Stroma as Dickon Tarly (not pictured) and Cormac McLaggenWarner Bros. Pictures -
7 of 8Julian Glover as Grand Maester Pycelle and the voice of AragogHBO; Warner Bros. Pictures -
8 of 8Ian Whyte as Wun Wun and Madame Olympe Maxime ( for full-body shots)HBO; Warner Bros. Pictures
Harry Potter alum Jim Broadbent — who played Professor Horace Slughorn in the film adaptation of J.K. Rowling’s beloved book series — has officially been named as the newest member of the Game of Thrones cast. HBO confirmed to TIME Thursday that the Oscar winner will play a “significant” role in the show’s upcoming seventh season, making him the latest in the line of actors who have transitioned from the wizarding world to Westeros.
Broadbent follows in the footsteps of fellow British stars such as Natalia Tena (Nymphadora Tonks and Osha) and David Bradley (Argus Filch and Walder Frey) who have appeared in both fantasy franchises.
See the full gallery of actors who have made the switch — and the roles they played in each series — above.
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