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  ===Casting===
  With this episode, Joe Dempsie (Gendry) is promoted to series regular, after guest starring in the first and second season. This episode also marks the first appearances of Diana Rigg (as Lady Olenna Tyrell), Mackenzie Crook (as Orell), Paul Kaye (as Thoros of Myr), Thomas Brodie-Sangster (as Jojen Reed), Ellie Kendrick (as Meera Reed), Philip McGinley (as Anguy), Noah Taylor (as Locke), and Iwan Rheon (as the cleaning boy attending Theon).