We've learned the identity of Westeros' newest resident ... sort of.
On Wednesday, Game of Thrones confirmed via Twitter that Oscar winner Jim Broadbent will join the cast for Season 7. However, the show is not saying what role he'll play, only that it's "significant." That description is likely meant to reassure fans he'll be around longer than Ian McShane, who only appeared in one episode after quite a fuss was made of his casting — and his loose lips regarding plot lines.
Broadbent, who is known to Harry Potter fans as Hogwarts professor Horace Slughorn, can next be seen on the big screen Sept. 16, when Bridget Jones' Baby arrives.
Fans will have plenty of time to speculate who Broadbent will play — in order to accommodate the arrival of winter in Westeros, the show started shooting later than usual and will miss its usual April premiere window.
However, one popular theory is that he'll play the Archmaester, who oversees the Citadel, where Sam (John Bradley) began his training in Season 6. In that scenario, he would likely appear in a mentor capacity, similar to the way Max von Sydow's Three-Eyed Raven tutored Bran Stark.
For now, we'll have to live with whatever tidbits the cast drops at the Emmys on Sept. 18, where GOT will be defending its best drama series win from last year. Plus, Williams is nominated in the supporting actress category, along with Lena Headey and Emilia Clarke. On the men's side, fans can root for Peter Dinklage and Kit Harington.