Watch Scooby-Doo and the Alien Invaders (2000) full movie.
Storyline: 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!
Director: Jim Stenstrum
Writers: William Hanna, Joseph Barbera, 4 more credits.
Stars: Scott Innes, Mary Kay Bergman, Frank Welker,…
More infor: IMDB, Wikipedia