first season. With the end of the first season establishing the importance of Jemaine Clement's character Oliver Bird, now the host of the villainous Shadow King, Hawley said that he had talked to the actor about the next season, and that he was "excited to come back". Clement's return was confirmed in July 2017, also being promoted to the main cast, along with the announcement that Saïd Taghmaoui had been cast as the true form of the Shadow King / Amahl Farouk. In November, during production on the season, Taghmaoui announced that he was no longer involved with the series, and FX confirmed that "a decision was made to recast" the role of Farouk. Navid Negahban was revealed to have taken over the role in January 2018. Hawley explained that Taghmaoui had not been "a great fit", leading to the recast. Negahban joins the main cast as well. Jon Hamm narrates the educational segments throughout the season. Hawley did not want the narration to feel "tainted" by having one of the series' characters give their own point of view, and wanted an actor who could give "a sense of identity and a feeling of control [as if] the show itself has a point of view and it's all going somewhere". He compared the voice that he wanted for the narration to Alec Baldwin's from the film The Royal Tenenbaums, and considered Hamm—who he thought had "a great voice"—after working with him on the film Pale Blue Dot. Hamm agreed to take on the role, and Hawley thought he gave the segments "such character", comparing the final performance to Rod Serling. Hawley added that he was "pretty confident" the actor would only be providing his voice to the series rather than ever appearing onscreen. Quinton Boisclair was confirmed to be returning as the Devil with the Yellow Eyes in July 2017. Katie Aselton also returns from the first season in a recurring role as David's sister Amy, before her body is infused with Busker's DNA allowing that character to return to life. Design New costume designer Robert Blackman continued the theme of mixing 60s and modern-day fashion. While each character's outfits were updated, the color palette for each character mainly stayed the same: Barrett wears orange and black in addition to yellow (with Keller saying black represents her character's "protective barrier"); and both Cary and Kerry Loudermilk wear navy and tan. Notable changes include: Melanie Bird's style changing to comfort clothing to portray her mourning in Oliver Bird; Wallace's suits featuring more color and floral designs at times; Busker's swimsuits showing how the character is being used and abused by the Shadow King; and Farouk sporting three-piece suits. Haller's style becomes more British punk, drawing inspirations from Sid Vicious and Johnny Rotten to portray a character coming from one mental institution to another. The season also moves Haller's hair closer to its unique look from the comics, with Stevens saying "it creeps ever higher". To create the sound of teeth chattering, for the people afflicted with the Catalyst mental virus, Hawley allowed sound supervisor Nick Forshager experiment with different approaches. Simply recording the actors on set chattering their teeth "didn't have that biting sound that we really needed", so they experimented with alternative sounds like horse hooves. They ultimately found that any sound they produced close to teeth chattering came across as fake teeth, so they tried recording the teeth of the sound department's staff in different ways. The final version used in the series was recorded with a Neumann condenser microphone and then digitally manipulated to give it a "kind