This is Rhea Seehorn's directorial debut. It also marks the first time an episode of the show is directed by a member of the cast.
Julia Minesci's character of Wendy makes her first reappearance since Breaking Bad (2008). Her full list of appearance includes:
The phrase Saul pronounces: "The wicked flee when no man pursueth" comes from the Bible (Prov 28:1) and ends with "but the righteous are bold as a lion."
The odd red color of the newly painted house is "vermillion."