On ESP he seems sensitive, kind, and caring, and reading emotional novels such as The Notebook, but it is later found out that he was just faking that to get a good grade in the class. In reality, he's a horror fan and loves horror novels, and is a big goth. Griffin also is partial to heavy metal music.
He is described as being very skinny with spiky black hair, pale skin, and large green eyes. He also a goth and wears black skinny jeans with disturbing, Gothic t-shirts.
Griffin's father owns large pizza places across the country, which is why he's so gilded.
In Sealed with a Diss, Kristen Gregory has a crush on him from spying on his E.S.P class. He goes to Skye Hamilton's end-of-year couple's party with Kristen, but dumps her at the end when Kristen keeps asking him about The Notebook, since really he doesn't care about that kind of sensitive stuff.