The long walk and talk confessional scene that opens the episode is Tobias Menzies's favorite memory of shooting the series. He and Jared Harris rehearsed extensively by themselves, usually while walking around the town of Pag.
Fitzjames' opening confessional also served as Tobias Menzies's initial audition. He landed his role with only a single audition when he reduced the show runners David Kajganich and Soo Hugh to tears.
David Walmsley (Sgt. Solomon Tozer) & Adam Nagaitis (Cornelius Hickey) also worked together on Banished (2015) as William Stubbins & Private Buckley respectively.