This was Vinton Hayworth's final acting role before his death on May 21, 1970 at the age of 63. He died five days before this episode was broadcast.
My Master, the Chili King (1970) is the last episode broadcast, but not the last episode filmed - that was Hurricane Jeannie (1970).
Final appearance of Larry Hagman as Anthony Nelson. In the two TV movie sequels Nelson was played by different actors as Hagman declined to participate.
Cousin Arvel referred to Jeannie as "Loco." Barbara Eden's character on How to Marry a Millionaire (1957) was named Loco.