Scooby-Doo! and the Goblin King Shaggy are allowed to keep theirs as they have proven their courage. As morning comes, Fred, Daphne and Velma forget what transpired (due to the effects of the memory-erasing spell) as Shaggy and Scooby-Doo come to pick them up. As the carnival packs up, Scooby uses an unpacked mirror one last time to spook the gang as the film ends. Some monsters from "Scooby-Doo, Where Are You!", "The New Scooby-Doo Movies", "The Scooby-Doo Show", "Scooby-Doo and Scrappy-Doo", "What's New, Scooby-Doo?" and "Scooby-Doo! and the Legend of the Vampire" are sighted in this movie: Scooby-Doo! and the Goblin King Scooby-Doo and
Scooby-Doo joined with a new Hanna-Barbera show, "Dynomutt, Dog Wonder", to create "The Scooby-Doo/Dynomutt Hour" (the show became "The Scooby-Doo/Dynomutt Show" when a bonus "Scooby-Doo, Where Are You!" rerun was added to the package in November 1976). Joe Ruby and Ken Spears, now working for Silverman as supervisors of the ABC Saturday morning programs, returned the program to its original "Scooby-Doo, Where are You!" format, with the addition of Scooby's dim-witted country cousin Scooby-Dum, voiced by Daws Butler, as a recurring character. The voice cast was held over from "The New Scooby-Doo Movies" save for Nicole Jaffe, who retired from acting