- Domhnall thinks that regardless of Sam's plans, at this point he will fall under suspicion since people connected in his life were victims (and since he's locked in the basement, he'll stop showing up at work).
- Talks about how control is central to Sam, and other serial killers he researched. He can't allow himself to be institutionalized because of that loss of control. He might want to get better, but he needs to decide how it happens.
- Domhnall and Steve were both really careful about COVID precautions, so outside of their scenes together they didn't get to socialize much.
- Kenny Chesney was apparently okay with Sam being a super fan, since he signed off on it.
- Joel Fields and Joe Weisberg (creators of The Americans) made the show because of their own relationships to therapy.
- They discuss Alan's relationship to his Jewish identity a lot, and go into depth about the scenes in Auschwitz. They felt there was no way a Jewish man would be held prisoner and forced to dig his own grave and not think about the Holocaust.
- They wanted to explore other aspects of being a serial killer, besides killing, hence Sam's relationships, his interest in food, and his Kenny Chesney fandom.