In mid-December 2015, it was announced that Jaime Ray Newman would play a major recurring role throughout the season as Rebecca Hamilton, a former girlfriend of Romero. On December 3, 2015, Damon Gupton was cast in the role. On November 5, 2015, reports surfaced that the series was casting the recurring role of Gregg Edwards, a doctor at Pineview Mental Institution. In August 2015, TVLine reported that Ryan Hurst would be returning to the series as Chick Hogan, a recurring character throughout the third season. Nestor Carbonell as Sheriff Alex Romero.Olivia Cooke, Nestor Carbonell, and Ryan Hurst (left to right) portray Emma Decody, Sheriff Alex Romero, and Chick Hogan, respectively.