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  ===Casting===
  "Walk of Punishment" introduces the Tully family at Riverrun, marking the first appearances of Lady Catelyn's uncle Brynden Tully, played by Clive Russell, and her brother Edmure, played by Tobias Menzies. Edmure Tully is depicted in the show more harshly than in the books. Talking about his character, Menzies described him as "as comic as ''Game of Thrones'' gets ... He's a little flawed, really."
  Dean-Charles Chapman first appears in the role of Martyn Lannister in this episode. In Season 4, however, Chapman returns portraying a different character: Tommen Baratheon, who was played by Callum Wharry in previous seasons.