Scooby-Doo the head story editor on "Scooby-Doo" since 1983. Following the first season of "A Pup Named Scooby-Doo", Ruegger and much of his unit defected from Hanna-Barbera to Warner Bros. Animation to develop "Steven Spielberg Presents Tiny Toon Adventures" and later "Animaniacs", "Pinky and the Brain", and "Freakazoid!". From 1987 to 1988, Hanna-Barbera Productions produced "Hanna-Barbera Superstars 10", a series of syndicated TV movies featuring their most popular characters, including Yogi Bear, Huckleberry Hound, The Flintstones and The Jetsons. Scooby-Doo, Scrappy-Doo and Shaggy starred in three of these movies: "Scooby-Doo Meets the Boo Brothers" (1987), "Scooby-Doo and the Ghoul School" (1988),
Scooby-Doo Ricky Gervais, Kenan Thompson and Chris Paul. The series will also include fictional guest stars, including Jaleel White as Steve Urkel, Kevin Conroy as Batman, Wonder Woman, The Flash and Sherlock Holmes. Beginning in 2012, Warner Bros. Animation began producing direct-to-video special episodes in the style of the concurrently produced films for inclusion on "Scooby-Doo" compilation DVD sets otherwise including episodes from previous Scooby series. These include "Scooby-Doo! Spooky Games", included on the July 2012 release "Scooby-Doo! Laff-A-Lympics: Spooky Games", "Scooby-Doo! Haunted Holidays", from the October 2012 release "Scooby-Doo! 13 Spooky Tales: Holiday Chills and Thrills", and "Scooby-Doo! and the