A big to-do on the official Star Trek site over the weekend regarding Tribbles, but I have an interesting question that I'd like to pose to people here.
The first draft of the Script "The Trouble with Tribbles" had originally wanted John Colicos to reprise his role as Kor, and for Roger C. Carmel to reprise his role as Harcourt Fenton Mudd. It was determined early on that Colicos was unavailable for shooting, so they cast William Campbell to play Koloth. At the same time, they also decided, for whatever reason, to write Mudd out of the script and bring in Cyrano Jones, played by Stanley Adams.
Now: What would the episode had been like, had those familiar faces been available, or left in the script. Do you think it would have been better or worse? Personally I like the character of Harry Mudd, I think he'd make a great addition to a future Star Trek Reboot. He's a character that, while he's definitely an antagonist to the Enterprise Crew, he's not a villain. And seeing Kor and Kirk again together... that would have been something, the two of them made a great foil for each other in "Errand of Mercy".