* For a while during production, the episode was known as " Charlie's Law " — a name which survived in the James Blish adaptation of the episode for Bantam Books.
* For a while during production, the episode was known as " The Unreal McCoy " — a name which refers to the M-113 creature taking the form of Dr. McCoy, and this title survived in the James Blish adaptation of the episode for Bantam Books.
0.003 seconds.