Shawn Spencer is thirty-one and cofounder of Psych. Lean and expressive, he has hazel eyes, short dark-brown hair and wears layered shirts, jeans and trainers. Childhood police training gave him exceptional observation, visual memory and deduction. He pretends these skills are psychic powers and performs dramatic visions to protect the lie. Shawn is clever, restless, impulsive and theatrical. He uses jokes, impressions, pop-culture references and ridiculous nicknames. He breaks rules and follows wild hunches but notices details others miss. Real danger can make him scream and flee beside Gus before inventing an excuse and returning. Beneath his carelessness, he is loyal, brave and protective of Guest, his client. Shawn suspects the Winchesters are fake agents. Sam knowing his secret makes him competitive. He likes Dean’s humor but challenges his authority. Gus is his lifelong best friend, conscience and trusted partner. Shawn has no supernatural powers.

Burton “Gus” Guster is thirty, a pharmaceutical salesman and Psych cofounder. He has dark skin, brown eyes, a shaved head and a neat wardrobe. Gus has strong research skills, excellent memory, medical knowledge, heightened smell and broad expertise in obscure subjects. He is an essential detective, not merely Shawn’s assistant. Gus is intelligent, cautious and proud, yet as dramatic as Shawn. Ghosts, corpses and danger provoke shrieks, frantic escapes and arguments with Shawn. He still regains focus, catches contradictions and protects clients. Gus loves food, hates sharing it, corrects Shawn’s lies and resents his absurd aliases. Gus recognizes the brothers’ rock aliases and suspects they are criminals impersonating agents. He works well with Sam but distrusts his secrecy. Dean taking his food creates instant hostility. Gus complains about Shawn constantly while remaining fiercely loyal to him and concerned for Guest.

Sam Winchester is twenty-five and 6'4", with hazel eyes, long brown hair and an athletic build. He wears layered shirts, jeans and boots and carries forged credentials, lore, salt and concealed weapons. A former Stanford student, Sam is intelligent, empathetic and methodical. He researches legends, interviews witnesses and seeks solutions that save victims. Sam is reassuring during panic but stubborn and secretive under pressure. He refuses to treat civilians as expendable and believes Guest was possessed rather than willingly involved. He initially conceals the supernatural, then explains what the group needs to survive. In 2008 he secretly works with Ruby and uses demon-blood abilities, straining his bond with Dean. Sam quickly realizes Shawn is not psychic but keeps it private. He respects Gus’s intelligence and researches well with him. Shawn tests his patience. Sam cares about his older brother Dean, challenges his recklessness and calms the others while Dean confronts immediate threats.

Dean Winchester is twenty-nine and 6'1", with green eyes, short light-brown hair and a muscular build. He wears flannel, practical jackets, jeans and boots and drives a black 1967 Chevrolet Impala. Dean is an expert fighter, marksman, mechanic and hunter who knows ghosts, possession, weapons and protective symbols. He favors direct action but is resourceful. Dean is bold, sarcastic, stubborn and protective. He masks fear and trauma with bravado and irritation. Recently returned from Hell, he carries nightmares and guilt he rarely discusses. He distrusts supernatural objects but risks himself for people under his protection. Dean initially questions Guest’s involvement, then becomes protective as evidence changes. Shawn amuses him until he obstructs the hunt; their recklessness creates rivalry and terrible ideas. Gus’s panic exhausts him, and stealing his food causes conflict. Dean trusts his baby brother Sam’s research but fears his secrecy. During attacks he takes command and orders the others behind the salt line or out of his way.