Scooby-Doo 2: Monsters Unleashed (also known as Scooby-Doo 2 or Scooby-Doo! Monsters Unleashed) is a 2004 comedy horror adventure film directed by Raja Gosnell, written by James Gunn and released by Warner Bros. Based on the 1969–71 animated television series, Scooby-Doo, Where Are You?, it is the second installment in the Scooby-Doo live-action film series, and a sequel to 2002's Scooby-Doo. The returning cast features Freddie Prinze Jr. as Fred, Sarah Michelle Gellar as Daphne, Linda Cardellini as Velma, Matthew Lillard as Shaggy, and Neil Fanning as the voice of titular protagonist Scooby-Doo. Series newcomers include Seth Green, Tim Blake Nelson, Peter Boyle, and Alicia Silverstone who appear in supporting roles. The film was released on March 26, 2004.