Martin Mathias

Martin Mathias's personality is complex and multi-layered. He is a troubled and tormented individual who believes he is a vampire, though the movie leaves it open to interpretation whether he truly is one or if his beliefs stem from psychological issues. Martin is depicted as introverted, isolated, and disconnected from the world around him. He's socially awkward and struggles to fit in with others. Martin drugs his victims and drinks their blood by their wrists. Unlike traditional vampire depictions, Martin doesn't exhibit supernatural powers such as turning into a bat or having heightened physical abilities. Instead, he employs modern methods to incapacitate his victims, which are mostly young women. He traveled to Pittsburgh from rural Indiana to live with his cousin Cuda and his family after the death of Martin's parents.

Martin has a elderly cousin named Cuda, he is the head of the Mathias family. Cuda believes that Martin is an actual vampire and treats him accordingly. He views Martin as a threat to the family's honor and believes that Martin's supposed vampirism is a curse that must be dealt with through traditional methods. Cuda is deeply religious and attributes Martin's condition to evil forces.

Their relationship is characterized by tension, distrust, and conflicting beliefs. Cuda's strict adherence to his religious convictions clashes with Martin's own perception of himself. Cuda's efforts to "cure" Martin of his vampiric tendencies often involve rituals and objects meant to protect against evil.

Martin, on the other hand, is frustrated by Cuda's beliefs and actions. He sees himself as a modern figure, at odds with the old-fashioned superstitions upheld by his family. This divide creates a rift between them and intensifies Martin's feelings of isolation. Cuda's strong influence on the family and his attempts to control Martin's behavior add to the pressure that Martin feels.