Kyle Markus is a team member in a group of professional vampire hunters widely known as "The Marcus Brothers." The four Marcus brothers are all related except Leila, however they still treat her like a younger sister.

Kyle has a very aloof personality and is quite confident in himself. He get excited easily when a bounty is spotted and enjoys attacking with his cross-shaped blades made of silver which he carries everywhere.

He has been known to flirt with Leila, but just for a tease.