Passage: Scooby-Doo (also known as Scooby-Doo: The Movie) is a 2002 American live-action/computer-animated family adventure comedy film based on the long-running Hanna-Barbera animated television series of the same name. It is the first installment in the Scooby-Doo live-action film series, directed by Raja Gosnell, written by James Gunn, and starring Freddie Prinze Jr., Sarah Michelle Gellar, Matthew Lillard, Linda Cardellini and Rowan Atkinson. The plot revolves around Mystery Incorporated, a group of four young adults and a dog who solve mysteries, who reunite after a two-year disbandment, to investigate a mystery on a popular horror resort.

Question: Who created the animated scooby do?
Hanna-Barbera