SWAT Kats, Birdman, and The 13 Ghosts of Scooby-Doo left lasting impacts despite being short-lived or underappreciated. The Hanna-Barbera animation and production studio is known for series such ...

Scooby-Doo, Where Are You! quickly took off, and after just a couple of years, Hanna-Barbera would need to ... of regular characters to help return 13 ghosts to the Chest of Demons.