In the Bat-fight, you can clearly see one of the Joker's henchman waiting to be 'thrown' out of the flying saucer!
Batman: It is the duty of every good citizen of Gotham City to report meeting a man from Mars in a public park.
The actor playing "Chartreuse" in this episode is not the contemporary British actor Tony Gardner, although the role is listed as one of his credits. The British Tony Gardner was three years old when this American episode was first aired. He did not become an actor until the 1990s.
The idea of The Batcave being destroyed was later adapted in 1995's Batman Forever.
Stock footage from the classic 1953 20th Century-Fox scifi film Invaders From Mars was used to show The Joker's Flying Saucer in flight.
Richard Bakalyan (seen here as Verdigris) previously played Arbutus in Episode #1710, "Louie the Lilac," Sphinx in the Season-2 episodes #9755, "King Tut's Coup/Batman's Waterloo," and C.B. in the first-season episodes #8731, "Death in Slow Motion/The Riddler's False Notion."
This is the final appearance of both the late Cesar Romero as The Joker and Byron Keith as Mayor Lindseed.
The footage of The Dynamic Duo driving The Batcycle to the heliport where they switch to The Batcopter is edited from the 1966 Batman movie.
Although The Joker had a run-in with Alfred Pennyworth at the end of Season-2 Episode #9723-Pt. 2, "The Joker's Provokers," he failed to recognize him in this episode.
The late Ellen Corby (Mrs. Green) was well known for her portrayal of Grandma Esther Walton on The Waltons (CBS, 1972-81).
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