The late G. David Schine (seen here as Himself [Floorwalker])
became infamous in the 1950s as an aide to disgraced, anti-Communist demogogue Sen. Joe McCarthy and his assistant Roy Cohn. (edit) The orange and purple blouse worn by Ida Lupino was previously worn by Leslie Perkins in The Minstrel's Shakedown and by Kathy Kersh The Impractical Joker. (edit) This was the final appearance of the late David Lewis as Warden Crichton. (edit) The late Ida Lupino and Howard Duff were husband and wife between 1951 and 1984. They even took some time to star in a sitcom, Mr. Adams and Eve (CBS, 1957-58). (edit) Look carefully at the villains which Dr. Cassandra springs from prison in this episode, and you will notice that Cesar Romero, Frank Gorshin, Burgess Meredith, Vincent Price, Victor Buono, and Eartha Kitt are not in their regular roles! All were unavailable, so stunt doubles filled in for them. (edit)

Dr. Cassandra: You'd better watch out. I've got your number, Batman.
Batgirl: What about *my* number, Dr. Cassandra?
Dr. Cassandra: Other women's numbers don't interest me, Batgirl. (edit)

King Tut appears as one of the 'arch-villians' of Gotham City, even though in a previous (two weeks before) episode 'I'll Be A Mummy's Uncle' King Tut returned to his life as a professor of egyptology after a blow to his head that completely reformed him. (edit)

This episode does not have any allusions. Add some now!