 Producers cast Marisa Ramirez very late in the audition process, after the episode "The Ghost" had already been filmed.Ramirez was cast because the producers wanted someone "watchable" and at the same time "normal, and real" as a contrast to Paul and Keel, who had each lived unusual lives.Hatem described the three leads as a "weird, paranormal "Brady Bunch"" because of each of the characters' non-nuclear families.