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! and the Monster of Mexico end, everybody enjoys the Day of the Dead festivities. "Scooby-Doo! and the Loch Ness Monster" was released on June 22, 2004. Scooby-Doo! and the Monster of Mexico Scooby-Doo! and the Monster of Mexico is a 2003 direct-to-video animated comedy mystery film; the sixth in a series of direct-to-video films based upon the "Scooby-Doo" Saturday morning cartoons. It was released on September 30, 2003, and it was produced by Warner Bros. Animation. It is one of two Scooby-Doo movies released in 2003 (the other being Scooby-Doo and the Legend of the Vampire) that briefly brought back the original voice cast from