Allison Blake says "This town needs an enema." This is the same line the Joker uses in Batman (1989).
Lexa Doig guest stars in a prominent role in this episode, and her husband, Michael Shanks guest stars in a prominent role in the following episode.
Some could argue that Eureka wasted an opportunity to exploit Michael Shanks Stargate SG-1 credentials and acting experience in a forgettable part as Christopher Dactylos. An argument could be made that Michael Shanks' wife had more air-time that he did. Lexa Doig who had appeared in 11 episodes of Stargate SG-1 as Dr. Carolyn Lam , General Landry's once estranged daughter, has been married to Shanks since 2003. Shanks appears in the next episode of this season All That Glitters.