Join Scooby-Doo, Shaggy, Daphne, Fred, and Velma as they explore the castle, and help them solve the mystery of the Phantom of the Knight.

Animation). The series, which introduced supernatural mysteries-solving teens Fred Jones, Daphne Blake, Velma Dinkley and Shaggy Rogers and their talking Great Dane Scooby-Doo, originally aired on ...