Watch Scooby-Doo 2: Monsters Unleashed (2004) full movie online.
Synopsis: In this live-action sequel, the lovable dog Scooby-Doo once again joins his pals Shaggy (Matthew Lillard), Velma (Linda Cardellini), Fred (Freddie Prinze Jr.) and Daphne (Sarah Michelle Gellar) as they stumble into another seemingly supernatural mystery. In addition to facing off against various monsters that are tormenting their town, the gang must deal with television journalist Heather Jasper-Howe (Alicia Silverstone), who is out to discredit their investigations.
Director: Raja Gosnell
Writers: William Hanna, Joseph Barbera
Stars: Freddie Prinze Jr., Sarah Michelle Gellar, Matthew Lillard
Sources: IMDB, Wikipedia