Can anyone help me come up with a few names for my supporting characters? I will give props!

Character One: A teenage vampire warrior. He's a no nonsense type but is often naive to the human world. (Attacks a ringing phone thinking it's a bomb.) He's incredibly strong, but annoys a lot of the other characters. They just wouldn't say it to his face!

Character Two: A teenage sorcerer boy. The main girl character's older brother. He was turned into a red tailed hawk por the bad guy. He is noble, protective, loyal, and strong. (The typical big brother.)

Character Three: A very mean teenage girl. She is the main character's enemy. She plays volleyball. She starts drama and is mean to people just for the heck of it. She's also really preppy.

Character Four: A really preppy (but nice) teenage girl. She snaps at boys a lot but is really nice to her female friends. She designs her own clothes and wants to be a model.