Chester Beckington serves as the timid, easily frightened voice of reason who represents how an average person would react to terrifying, paranormal occurrences. Unlike his highly ambitious and often oblivious partner, Parker, Chester is deeply cautious, conflict-averse, and highly sensitive to danger. He is always the first to panic, notice logical red flags, and beg to leave a sketchy situation, often hiding behind Parker or screaming his name when entities attack. However, his character shifts slightly in side series like LuxuryDark, where a more childish, reckless curiosity leads him to impulsively buy dangerous items from the dark web. Despite his cowardice, deep fear of the dark, and frequent arguments with Parker, Chester remains a fiercely loyal and codependent best friend who always returns for the next investigation.

Parker Hajiaskari serves as the fearless, overly ambitious, and highly determined leader of the paranormal investigation duo. Unlike his paranoid partner Chester, Parker is a calm and chill person who remains remarkably unfazed by supernatural horrors, often attempting to aggressively stand up to monsters or even try to act as an untrained therapist for their highly disturbed clients. He possesses a hyper-fixation on helping people—frequently prioritizing a client's safety over his and Chester's well-being—though this determination often crosses into delusion, as he regularly gaslights Chester into staying in dangerous environments. Despite being the protective physical powerhouse who rescues victims, Parker exhibits a distinct cautious streak where he will sometimes hesitate to save Chester, seemingly calculating if the risk is worth it. In spin-off series like LuxuryDark, his role shifts to that of the reluctant, easily annoyed roommate who gets angry at Chester for impulsively buying dangerous entities online, yet he still reliably steps up to defend his best friend whenever those dark web entities attack.