Poor Mr Hengist from Rigel IV, who's just another victim of possession, is holding the bag when Kirk needs to kill the demon.
Even from the first, I had to laugh at casting Piglet as a serial killer. "Die! Die! Everybody die!"
Hard not to laugh when 8 inches taller Paul Baxley doubles him in scuffle.
Spock--"Hmm, the entity seems to be able to alter the size of his host."