watch 01:48 The Loop (TV) Do you like this video? Agatha Crispie is the author of Cyanide in the Cereal. Notes/trivia Crispie is a parody of Agatha Cristie. References ↑ SD (DC Comics): Scooby in the Booby Hatch!, issue 1. Retrieved from "https://scoobydoo.fandom.com/wiki/Agatha_Crispie?oldid=364601" Categories: Authors within the Scooby-Doo universe Mentioned-only characters Scooby-Doo (DC Comics) characters Community content is available under CC-BY-SA unless otherwise noted.