Moderated by George R. R. Martin, whose book series "A Song of Fire and Ice" inspired the show, the panel announced 14 new castmembers for Season 3. The new season begins March 31, 2013.
The biggest addition to the series is Diana Rigg as the Queen of Thorns. Rigg, for you comic book fans, played Emma Peel in the 1960s British version of "The Avengers" TV series. Here are the others, followed by a video announcement:
Mackenzie Crook as Orell. Clive Russell as Bryndon "The Blackfish" Tully. Nathalie Emannuel as Missandei. Paul Kaye as Thoros of Myr. Kerry Ingram as Shireen Baratheon. Thomas Brodie-Sangster as Jojen Reed. Ellie Kendirck as Meera Reed. Richard Dormer as Beric Dondarrion. Kristofer Hivju as Tormund Giantsbane. Philip McGinley as Anguy. Tara Fitzgerald as Selyse Baratheon. Tobias Menzies as Edmure Tully. Anton Lesser as Qyburn.