Trivia / Star Trek S3 E22 "The Savage Curtain"

• The Danza: Phillip Pine as Colonel Phillip Green.
• Recycled Script: Much of the story is taken near-directly from the first season episode "Arena" — a Sufficiently Advanced Alien forces Kirk to fight to the death against an apparently evil adversary in a barren environment, with the threat of the Enterprise being destroyed and all its crew killed hanging over Kirk if he fails. Only this time, instead of being forced by a man with sparkly make-up to fight a giant lizard, we have the somehow even sillier situation of Kirk being forced by a rock monster to fight alongside Abraham Lincoln in order to take on a Rogues Gallery that includes Genghis Khan.
• What Could Have Been: Gene Roddenberry's original story outline featured Socrates visiting the Enterprise along with Abraham Lincoln, and then participating in the fight on the planet surface. In this version, Surak was called "Lvov" and the "good" team also featured the recreation of a "1970s flower power guru" named "Pon". The "evil" team consisted of "Mr. Green", a late-20th century Earth dictator, Adolf Hitler and Attila the Hun among others.