The ghost of Zombo appears in "Terror, Thy Name Is Zombo", an episode of A Pup Named Scooby-Doo. He was the disguise of Joey Jipner.
Zombo resembles a circus clown, dressed in a blue costume with a yellow collar. His hair, skin and eyes are absolutely white. He also has a red false nose, red lips and sharp teeth.
Joey was in charge of Jipner's Joyland and dressed up as the clown ghost to scare his brothers and sisters away so he could improve the park and own it alone.
- In a mock follow-up, a promo for A Pup Named Scooby-Doo during Cartoon Network's Powerhouse era, showed the ghost of Zombo (called the "Big Angry Clown") in jail, where he's stuck making balloon animals, but all he can make is a dog (which he calls a sheepdog).