Scooby-Doo and the Alien Invaders is the third direct-to-video Scooby-Doo film. It was released on October 3, 2000.
A cosmic case of UFOs, intergalactic intrigue and out-of-this-world romance launches Scooby, Shaggy and the Mystery, Inc. kids into their most unearthly adventure ever!
- Jeff Bennett as Lester
- Mary Kay Bergman as Daphne Blake
- Jennifer Hale as Dottie
- Mark Hamill as Steve
- Scott Innes as Shaggy Rogers and Scooby-Doo
- Candi Milo as Crystal and Amber
- Kevin Michael Richardson as Max
- Neilson Ross as Sergio
- B. J. Ward as Velma Dinkley
- Audrey Wasilewski as Laura
- Frank Welker as Fred Jones
- Scooby-Doo and the Alien Invaders at the Internet Movie Database