Mitch Pileggi (Larry Jennings) and Gil McKinney (Chris) have both previously starred on the television series Supernatural, as grandfathers to the main characters Sam and Dean. Pileggi starred as Samuel Campbell and McKinney starred as Henry Winchester. Loretta Devine (Adele) and Sarah Drew (April) also appeared in Supernatural. Devine as the psychic Missouri and Drew as Nora.
Every episode of the show is named after a famous song. "If Only You Were Lonely" is a song by The Replacements.
Gil McKinney (Chris) had a recurring role in ER as intern Paul Grady.