Horseman Of The Skulls

Scooby-Doo Meets the Boo Brothers is a 1987 animated comedy horror made-for-television film produced by Hanna-Barbera as part of the Hanna-Barbera Superstars 10 series. The 92 minutes film aired in syndication. It is the first full-length film in the Scooby-Doo franchise.