One of the guest stars in this episode is Richard Kline, who was best known for his role as Larry Dallas on Three's Company. Three's Company aired its final episode on the very same night Hunter aired its first: September 18th, 1984.
Richard Kline (Michael Edleton) and Mary Jackson (Clara) both worked with John Ritter in popular TV series during their careers; Richard Kline on Three's Company (1976) and Mary Jackson on The Waltons (1972).