Jim Carrey appears in the movie-within-the-episode Leap Dave Williams as Dave Williams, which parodies The Santa Clause (1994), Carrey's movie Liar Liar (1997), and the movie Evan Almighty (2007) (sequel to his own Bruce Almighty (2003)). His character undergoes an uncontrollable transformation to his physical appearance which he tries to fight, as Evan does in Evan Almighty, and his experiences allow him to reconnect with his son and "solve the big case from earlier", as in Liar Liar.
Andie MacDowell's brief appearance in the movie-within-the-episode, Leap Day, mirrors her character in Groundhog Day (1993). She starred as the love interest of Bill Murray, who, like Jim Carrey in Leap Day, experiences an unexplained transformation during a holiday few people celebrate.
Frank's trucker hat reads, "Thick."