Detective Kevin Marx is a detective from the homicide division of the Tulsa Police Department. He and Detective Martin interrogate Zoey Redbird twice in Betrayed: once after Chris Ford has been discovered dead and Brad Higeons was discovered missing, and once after both Chris and Brad were found dead and Heath Luck has gone missing.
Marx is taller than Detective Martin.
Marx is very caring and understanding about the vampyre ways of life. He is also very caring towards Zoey, especially understanding of the death of her roommate, Stevie Rae Johnson
- Marx's twin sister Anne was Marked when they were teenagers and they still keep in touch