Ghostly Trio

The Ghostly Trio, consisting of Stretch, Fatso, and Stinkie, are a group of three, mean ghosts who are Casper's "uncles" and cause much trouble to the living and the dead (including their own nephew).

They appear in Casper (1995), Casper: A Spirited Beginning, Casper's Scare School, and Casper's Haunted Christmas.

Casper (1995)
The Trio first reveal themselves when they come back from a long night out