These characters are part of the cast of a comic I'm planning to start in the next month or so. It involves monsters of movies and myths who rent rooms in a castle called Haunted Haven.
Clockwise, starting at the top:
Rafe Cross
Rafe Cross (wolfman form)
Dr. Pretorius
Aurora "Rori" Knight
Headless Horseman

The two central characters are Rafe, who's half witch and wants so much to be a necromancer, and Rori, his best friend whose life he saved (sort of) by turning her into a zombie. Dr. Pretorius is the head of management at the castle and gives Rori the creeps. I'm considering making the Headless Horseman the mail man.

Rafe & Rori were adopted from MafiaTrickster on DeviantArt
Dr. Pretorius © Universal Pictures
Headless Horseman is public domain