 Guest actor Laurie Murdoch, who portrayed one of the murdered priests in the episode, would later return in the third season episode "TEOTWAWKI", in an unrelated role.Fellow guest Tom McBeath, who played a detective investigating the case, would also reappear in the third season, playing a prosecution lawyer in "Omertà".The episode opens with a quotation taken from the Book of Exodus, the second book of the Hebrew Bible, and one of the five books that make up the Torah.