Miss Evangeline Guant
Zack's new teacher, who turns out to be a ghost who wants to teach him... in the grave.
- Affably Evil: While she does want to pull Zack into her grave, she is generally nice to her students and is well liked by them for being good at teaching.
- Cool Teacher: While she is more old fashioned than most examples, she is still well liked by the class for coming up with fun ways to teach the class and being generally pleasant. Zack even admits she was a really good teacher despite trying to kill him, when he uses the book of spells she gave him to get revenge on one of his asshole friends.
- Dramatic Irony: She's a good teacher, but she also wants to drag kids into her grave so she can teach them for all eternity. A truly good teacher wouldn't be teaching someone for that long because they wouldn't need to.
- Ethereal White Dress: She dresses completely in white and wears a heavy veil to hide her rotting face.
- Evil Old Folks: Her white hair and pale skin aren't just because she's a ghost, as she seems to have died when she was an old woman.
- Evil Teacher: An interesting example where she's a good teacher, who just so happens to want to pull students into the grave to teach them forever, which is where the evil part comes in. There's also the matter of making their usual teacher sick so she can take over the class.
- Meaningful Name: Gaunt is a word meaning haggard (usually due to age) or grim, both of which describe her appearance pretty well.
- Soft-Spoken Sadist: Even as she's trying to pull Zack into her grave, she still talks in a calm voice and is well spoken.
- Stern Teacher: She can be hard on the students when they act up, such as when Zack attempts to play a prank on her.
The evil fortuneteller in Eye Of The Fortuneteller
- Bullying a Dragon: Kelsey originally mocks her and accuses her of being a Phony Psychic. She learns the hard way that this was a bad idea.
- Disproportionate Retribution: Taken Up to Eleven. As punishment for insulting her, she puts a horrible curse on Kelsey which makes her hallucinate that various animals she fears are attacking her. At one point she nearly drowns due to a bunch of illusory jellyfish attacking her.
- The Dreaded: The entire Gypsy community fears and hates her due to her power and cruelty. It's also implied she's cursed numerous other victims in the past.
- Knight of Cerebus: She is by far the most evil villain in the series when she first appears.
- Sealed Evil in a Can: Possibly. at the end she seemingly dies. However, the Twist Ending has Kelsey talking to a mechanical fortune teller that starts spouting the same dialog as Valda, implying Valda's soul is trapped inside it.
- Wicked Witch: She is an evil spellcaster with some really nasty powers.