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Game of Thrones Season 3 is over, and all eyes are on Season 4 — and, more specifically, Season 4 casting. Because, yes, the world of Westeros is far from done growing, and with the next season's filming almost done, we already have a lot of news about new faces joining the cast.

What new characters can we expect next year? Who's been recast? Which MIA secondary characters are returning? We've rounded up all of the casting news and spoilers right here, and will continue to update as more info roles in.

Definitely Coming

Pedro Pascal as Oberyn Martell. Rejoice! This badass fan fave from Dorne will be appearing in Season 4. He'll be played by Pedro Pascal.

Indira Varma as Ellaria Sand. Oberyn's sexually adventurous paramour will be played by Indira Varma.

Yuri Kolokolnikov as Styr, the Magnar of Thenn. Russian Actor Yuri Kolokolnikov will play this steely Wildling leader. We're not sure exactly what role he'll play in the plot, since a lot of his story has been given to Tormund this season. 

Roger Ashton-Griffiths as Mace Tyrell. Mace Tyrell, Margaery's father, who Lady Olenna has described as rather unimpressive, will join the fun this year. He will be played by Roger Ashton-Griffiths.

Mark Gatiss as Tycho Nestoris. Sherlock and Doctor Who favorite Mark Gatiss will be joining the cast as Tycho Nestoris, a representative of the Iron Bank of Braavos.

Paola Dionisotti as Lady Anya Waynwood. Paola Dionisotti will play Lady Anya Waynwood.

Joel Fry as Hizdahr zo Loraq. Joel Fry will play Hizdahr zo Loraq.

Struan Rodger as The Three-Eyed RavenWe can't wait to see this character on screen!

Elizabeth Webster as Walda FreyElizabeth Webster will bring Roose Bolton's wife to life.

Jane McGrath as a Wildling. Actress Jane McGrath is playing an as yet unconfirmed Wildling character. Who do you think she is? Our money is on Mance's wife.

Unknown child characters. According to their respective agencies, child actors Octavia Selena Alexandru and Brenock O'Connor will have parts this season.

Recastings

Michiel Huisman as Daario Naharis. Nashville actor Michiel Huisman will reportedly replace Ed Skrein as Daario, the hot sellsword Dany has a thing for.

Thor Bjornsson The Mountain. According to Thor himself, this Icelandic strongman will take over the role of The Mountain, making him the third actor to play the character.

Dean-Charles Chapman as Tommen Baratheon. Joffrey's little bro has also reportedly been recast.

Returning Faces

Lysa Arryn. Kate Dickie is back as Lysa Arryn, according to her agency. (No surprise there for those who know the books.)

Alliser Thorne. Jon's Night Watch nemesis is back.

Rorge. Rorge, a criminal who was forced to join the Night's Watch and was saved, along with Jaqen H'ghar, by Arya in Season 2, is back in Season 4 according to his agent's website.

Ser Dontos. The knight Sansa rescued in Season 2 fell to the wayside in Season 3, but the showrunners say we haven't seen the last of him, and actor Tony Way has tweeted about being in Belfast, which suggests that he's back on set.


Rumors and Speculation

More Greyjoys? Although the extended Greyjoy clan does not play a big role in the books until A Feast for Crows, some fans suspect we'll meet more of them this season, given Yara's apparent increased role.

Janos Slynt. We haven't seen any official confirmation that Janos Slynt (former Commander of the City Watch sent to the Night's Watch by Tyrion in Season 2) will be back in Season 4, but Winter Is Coming has unofficial confirmation, and given that his story is linked to Alliser Thorne's in the books, we wouldn't be surprised to see him.

Get more Game of Thrones spoilers here.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!


Credit: Celebified Photo: Game Of Thrones Season 4: Icelandic Band Sigur Rós Tapped For Guest Appearance