The character of Dr. Bloch was likely named after Robert Bloch, the author of Psycho. Joseph Stephano, the writer of this episode, wrote the screenplay for Psycho.
Although Jory Peters is said to be 20 years old, Scott Marlowe was already 31 when this episode was made.
This is the first Outer Limits episode to air using its pre-credit sequence as a prologue rather than a teaser clip.