SpongeBob SquarePants

Season 1, Episode 23

Episode Title: Squidward the Unfriendly Ghost

Air Date: 1999-09-25

Overview:

SpongeBob thinks he accidentally killed Squidward, so Squidward decides to use it for his advantage. Threatening to haunt them for the rest of their lives, Squidward makes SpongeBob and Patrick his servants.