Bret is a 17-year-old affluent student at Buckley prep school who aspires to be a writer. He observes his glamorous social circle with a detached eye, often playing the role of a typical wealthy teenager to conceal his intense sexual desires and inner anxieties. As a string of gruesome crimes rattles Los Angeles, he develops a paranoid fixation on the newest student at his school.

Robert is a handsome transfer student from Chicago who recently moved to Century City to live with his aunt. He quickly infiltrates the tightly knit social hierarchy at Buckley, drawing the attention of several students. His confident demeanor masks a murky personal history that generates intense speculation among his new peers.

Susan is the student body president and the informal leader of her senior class at Buckley. She possesses a pragmatic intelligence and classical beauty, yet she shares a weariness with the superficial expectations placed upon her. Her shifting romantic interests create friction within her established friend group.

Debbie is an extremely wealthy teenager who embraces the freedoms of her senior year. While she appears to be a quintessential rich girl with a Bel Air mansion and her own horse, she possesses a fierce independence. She seeks genuine connection in her romantic life but struggles against the emotional distance of her partner.

Thom is the starting quarterback of the Buckley football team and fits the archetype of the popular high school athlete. Despite his conventional exterior, he reads literature and watches independent films. His steady demeanor undergoes strain as new social dynamics threaten his relationship.

Ryan is the co-captain of the football team and belongs to the core Buckley social group. Coming from a slightly less affluent background in Northridge, he often criticizes the spoiled behavior of his peers. He maintains a tough exterior while keeping his personal desires carefully hidden from the broader school population.

Matt is a detached student who lives in a pool house separate from his parents' main residence. Considered somewhat of an outcast within the Buckley ecosystem, he drifts through his days with an indiscriminate approach to physical intimacy and a heavy reliance on recreational substances.

Terry is a successful, wealthy movie producer and a father figure in the Bel Air community. He frequently uses his Hollywood influence and wealth to cross boundaries, behaving inappropriately with the teenage boys in his daughter's social circle.

Liz is a former model who struggles with severe alcohol use disorder. She maintains a hostile, cantankerous presence in her household, frequently berating her husband and creating an uncomfortable environment for visitors.

Abigail is an adult resident of Century City who takes in her nephew after his turbulent time in Chicago. She is undergoing a drawn-out divorce and provides a stabilizing but somewhat naive presence, defending her family member against neighborhood rumors.

Dr. Croft is the affable principal of Buckley prep school. He manages the wealthy, privileged student body with a pragmatic approach, though he struggles to mediate the intense interpersonal dramas of his senior class.

Ronald is a high-powered lawyer whose busy schedule keeps him separated from his teenage son. He lives in a large estate but remains largely disconnected from the daily habits of the boy living in his pool house.

Sheila is a wealthy matriarch who maintains a hands-off approach to parenting. She monitors her son's presence primarily through visual cues across their large property rather than direct interaction.

Jeff is a young man who operates as the primary drug supplier for the affluent circle of Buckley students, frequently appearing at parties and local clubs.

Steven is a personal assistant who dutifully facilitates his Hollywood producer boss's professional schedule and private agendas.