Bunnicula: a bunny. But not a ordinary bunny but Bunnicula is a Dracula bunny.
Chester: Chester is a friendly cat. He’s a best friend of Harold.
Harold: Harold is a friendly dog. He’s a best friend of Chester.
Toby: Toby is a boy. He’s Pete’s brother.
Pete: Pete is a boy. He’s Toby’s brother.
Mr. Monroe: a man. He’s father of Pete and Toby.
Mrs. Monroe: a women. She’s mom of Pete and Toby.