Jon Snow is struggling to balance the demands of the Night's Watch with those of the newly arrived Stannis Baratheon, who styles himself the rightful king of Westeros.
Meanwhile, Cersei scrambles to hold on to power in King's Landing amidst the Tyrells and the rise of a religious group led by the enigmatic High Sparrow, while Jaime embarks on a secret mission.
Across the Narrow Sea, Arya seeks an old friend and a fugitive Tyrion finds a new cause. And as danger mounts in Meereen, Daenerys finds that her tenuous hold on the city requires hard sacrifices.
Based on the bestselling fantasy book series by George R.R. Martin, Game of Thrones is an epic story of treachery and nobility set on the continent of Westeros, where summers and winters can last years, and only the lust for power is eternal.
Returning series regulars this season include Peter Dinklage (Tyrion Lannister), Nikolaj Coster-Waldau (Jaime Lannister), Lena Headey (Cersei Lannister), Emilia Clarke (Daenerys Targaryen), Aidan Gillen (Petyr "Littlefinger" Baelish), Kit Harington (Jon Snow), Diana Rigg (Lady Olenna Tyrell), Natalie Dormer (Margaery Tyrell), Maisie Williams(Arya Stark) and Sophie Turner(Sansa Stark).
Additional returning series regulars this season include Alfie Allen (Theon Greyjoy), John Bradley (Samwell Tarly), Dean-Charles Chapman (Tommen), Gwendoline Christie (Brienne of Tarth), Liam Cunningham (Davos Seaworth), Stephen Dillane (Stannis Baratheon), Nathalie Emmanuel (Missandei), Jerome Flynn (Bronn), Iain Glen (Jorah Mormont), Conleth Hill (Varys), Kristofer Hivju (Tormund Giantsbane),Michiel Huisman (Daario Naharis), Michael McElhatton (Roose Bolton), Iwan Rheon (Ramsay Snow),Carice van Houten (Melisandre) and Indira Varma (Ellaria Sand).
New cast members for the fifth season include Jonathan Pryce (the High Sparrow), Alexander Siddig (Doran Martell), DeObia Oparei (Areo Hotah), Keisha Castle-Hughes (Obara Sand), Rosabell Laurenti Sellers (Tyene Sand), Jessica Henwick (Nym Sand), Nell Tiger Free (Myrcella Baratheon) and Toby Sebastian (Trystane Martell).
The executive producers of Season 5 are David Benioff, D.B. Weiss, Carolyn Strauss, Frank Doelger and Bernadette Caulfield; co-executive producers, Guymon Casady, Vince Gerardis and George R.R. Martin; producers, Chris Newman, Greg Spence, Lisa McAtackney and Bryan Cogman.