Aidan Gallagher auditioned for the role of Henry Hart.
This episode was in production from December 9 To December 20 of 2013.
After originally airing as an hour-long episode, this pilot was divided into two half-hour episodes for re-broadcasts.
Pickle instance: To answer Captain Man's summons, Henry excuses himself to run out and get himself a pickle (prompting Jasper to shout out for a pickle, too).
The sound the plant makes when it "speaks" sounds identical to Cousin Itt in the 60s sitcom "The Addams Family"