Scooby-Doo is an American media franchise owned by Warner Bros. Entertainment and created in 1969 by writers Joe Ruby and Ken Spears through their animated series, Scooby-Doo, Where Are You!, for Hanna-Barbera (which was absorbed into Warner Bros. Animation in 2001). The series features four teenagers: Fred Jones, Daphne Blake, Velma Dinkley, and Shaggy Rogers, and their talking Great Dane named Scooby-Doo, who solve mysteries involving supposedly supernatural creatures through a series of antics and missteps, while traveling using a brightly colored van called the "Mystery Machine".
https://en.wikipedia.org/wiki/Scooby-Doo