The Ghostly Trio

The Ghostly Trio (aka Stretch, Fatso and Stinkie) (voiced by Joe Nipote, Joe Alaskey and Brad Garret) are the uncles of Casper. They really enjoy scaring people and pulling pranks. They wanted to scare Dr. Harvey out of the house, but later befriend him. They even get in contact with Dr. Harvey's deceased wife in gratitude for giving them the most fun they've had in years.