The tentacle used to memory wipe people, was reused in the first season of "Buffy the Vampire Slayer", since both shows have the same make up company.
In the original script, the Nakaleen Feeder was supposed to resemble a jellyfish which flew via jets of air.
'Gajic' was actually the name of Mira Furlan's husband.
Writer Christy Marx named the character Aldous Gajic after iconic writer Aldous Huxley, and Mira Furlan's husband Goran Gajic.
According to writer Christy Marx, director Richard Compton was fired before filming of this episode and refused to provide any actual direction. The cast and crew were "left on their own", affecting the quality of the episode, and "what smalls amount of directing took place" was thanks to DP John C. Flinn III.