One of the smartest people at Hellford High school is Dexter's friend Mary Anne. Dexter usually sits beside her because when writing a test, because Mary always has the right answer on her paper.

She gets A's in all of her classes, but she's especially interested in science. She likes to research and experiment to discover new and interesting things. Mary reads a lot, because the more you know, the smarter you are.

She has serious computer skills, and could probably change her grade on the teacher's computer if she wanted to. But she's honest and true because she believes that there is good in the world, and it's worth fighting for.

Mary Anne thinks that the boys should grow up, become cultured, and start thinking about the future. She's the voice of reason, and doesn't think it's a good idea to have fun all the time. Surprisingly, Mary Anne always seems shocked to learn of Dexter's latest scheme. You'd think she'd be used to his evil ways by now.

At least her friend Skye isn't hell bent on waging war against the system. The two of them can always enjoy some girl talk when the guys are out causing trouble.