The Demon smashes the window of the Kirby Cake House to steal some cake for Klarion. The name "Kirby Cake House" is a reference to Jack Kirby, the man who created The Demon.
In the comics, Etrigan typically speaks in rhyme.
The branding iron in this episode once belonged to Morgaine Le Fay. This character would later appear as an adversary on future episodes of the DCAU.
"Devastator 3", the movie that Klarion sees and scoffs at for being a sequel, seems to spin its title from the "Terminator" action movie franchise. Also, the name of the movie's star, Donald Shaltenpepper, is a clear spin on Arnold Schwarzenegger, star of the "Terminator" franchise. At the time this episode was produced, the latest film in the franchise was Terminator 2: Judgment Day (1991).