Hai! I have quite a few characters whom Gregory could plot with.
Damitrius d'Eath - Sixth Year, Gryffindor. She's sort of having a mental breakdown because she's being teased and blamed for the death of her best friend, Sapphire Ivanova. So because of that she'll soon be detecting to the DF side.
Danielle Mulciber - Sixth Year, Slytherin. More forgiving than she should be but she is a Dark Follower who loves to pull pranks. Her best friend is a halfblood who almost everyone beloved is a Pureblood. She's also engaged to Ezra Dimitriov.
Jayden Volkov - Sixth Year, Ravenclaw. Tends to keep to himself a lot more than he should, he prefers the company of animals to that of humans and he is the Ravenclaw Quidditch Captain this year.
Ryo Hiroku - Seventh Year, Hufflepuff. An orphaned Vampire who has suddenly become popular among the ladies. He hates the attention and does almost anything to get away from them. He's in love with a Werewolf and is the male Hufflepuff prefect.
Amaris d'Eath - Seventh Year, Slytherin. A Dark Follower who uses her charm to get anything she wants. She's unknowingly pregnant though she will find out later, and she is engaged to Nathaniel Mulciber.
Foster Murison - Seventh Year, Ravenclaw. Repeat seventh year because of the Green Itch he was unable to take his exams. He's pretty much antisocial towards almost anyone that aren't his friends, Judd and Ellie. But he sure loves comedy.
Aubrey Greyback - Seventh Year, Gryffindor. He goes by Terra, which is short for his middle name Terrance, because he basically hates being called Aubrey since he thinks it's a girl's name. There really isn't much more to him yet.