investigates a distress signal and comes across a planet that is an exact replica of Earth. They beam down near the signal transmitter and find a deserted city. A deformed teenager attacks them but they easily subdue him. McCoy determines his physiology is burned out as if from rapid aging, and he dies before their eyes...Read the full recap
A number of the uncredited children roles are played by sons and daughters of the cast & crew, including Darlene & Dawn Roddenberry (Gene Roddenberry), Lisabeth Shatner (William Shatner), Steven McEveety (director Vince McEveety), and Scott Whitney (Grace Lee Whitney).
Filming took place on the Mayberry lot used for The Andy Griffith Show
. Look for Floyd's Barbershop among other recognizable landmarks.
A young Phil Morris has an uncredited role. Phil's father Greg Morris
worked next door at Desilu's Mission: Impossible
set and they "borrowed" Phil for this episode's filming. As an adult, Phil would go on to work on Deep Space Nine
, as well as appear in Star Trek III: The Search for Spock
Children: Bonk bonk on the head!
Kirk: I think children have an instinctive need for adults; they want to be told right and wrong.
Kirk: No more blah, blah, blah!