Casper

All About "C" A continuity error appears in this episode: In a flashback to "C"'s and Ms Banshee's living childhood we see them in a modern setting, even riding in a car; but in the episode Boo to the Future when the Trio return to the time when they were alive (Civil War era) they see Ms Banshee there as a human mortal. Clearly she was not alive in modern times, and could never have ridden in a car as a child.

I Wanna Be Rude A tombstone in the background misspells Stinkie's name as "Stinky." (Unless of course it is referring to another person altogether.)

In "The Trick's a Treat," Amber reveals that her idol is actress Alicia Silverstone.

In Elusive Exclusive, Dr. Harvey reveals he's afraid of airplanes, circus clowns, and Carrot Top.

Paws The sign over the pet cemetary reads "S. King's Pet Semetary" (sic).