Liz MacRae, who portrayed Mrs. Wilson later reappeared in the episodes "The Tale of the Fire Ghost" as Linda Preston. Also in the series revival's episode "The Tale of Bigfoot Ridge" as Mom/Marie.
This episode was inspired by the filming location. The show's location scout showed creator/head writer D.J. MacHale an old water purification plant, which he thought had an interesting look, so he wrote the episode to take place there.
Philip Spensley, who portrayed Mr. Taylor appeared years later in the series revivals episode "The Tale of the Silver Sight: Part 2" and "The Tale of the Silver Sight: Part 3" as Vince.
Justin Borntraeger who portrayed Kit (uncredited), later appeared again in the series, in the episode "The Tale of the Quiet Librarian" as Brian.