Scooby-Doo and the Alien Invaders four Scooby-Doo direct-to-video films to be animated overseas by Japanese animation studio Mook Animation. It was the last film to feature Mary Kay Bergman as the voice of Daphne before her death in November 1999 and the film was dedicated to her memory. The Mystery Machine is driving through a desert in Roswell, New Mexico. A sandstorm comes up and Shaggy Rogers makes a wrong turn onto government property. Seeing a UFO causes Shaggy to lose control of the vehicle and the gang find themselves on the outskirts of a small town. While Scooby-Doo and Shaggy stay with the van,
Scooby-Doo married and retired from voice acting, Heather North assumed the role of Daphne, and would continue to voice the character until 1997. The TV influences of "I Love a Mystery" and "Dobie Gillis" were apparent in the first episodes. Of the similarities between the "Scooby-Doo" teens and the "Dobie Gillis" teens, the similarities between Shaggy and Maynard are the most noticeable; both characters share the same beatnik-style goatee, similar hairstyles, and demeanors. The core premise of "Scooby-Doo, Where are You!" was also similar to Enid Blyton's "Famous Five" books. Both series featured four youths with a dog, and the Famous