Odd is a 20-year-old short-order cook at the Pico Mundo Grille. He possesses the supernatural ability to see the lingering dead, who cannot speak but often guide him to seek justice on their behalf. He also sees shadowy entities called bodachs that swarm around impending acts of extreme violence. Despite a traumatic upbringing, Odd is highly empathetic and determined to protect his town and loved ones.

Stormy is an ice cream parlor employee at the local mall and Odd's devoted girlfriend. Having survived severe childhood trauma involving her adoptive father, she struggles with physical intimacy but maintains a fierce, unyielding emotional bond with Odd. She believes life is a boot camp to prepare souls for the afterlife, offering a philosophical counterbalance to Odd's practical fears.

Wyatt is the dedicated Chief of Police in Pico Mundo. He is one of the few individuals who knows about Odd's supernatural abilities, frequently relying on his psychic tips to solve local crimes. He actively shields Odd from public exposure and constantly encourages the young man to join the police force.

Fungus Man is a mysterious, wealthy individual residing in a dilapidated casita in the underserved neighborhood of Camp's End. His unsettling demeanor and the massive flock of dark spirits tracking him lead Odd to suspect he is planning a major violent event. He maintains a secret study filled with files on famous mass murderers.

Little Ozzie is a massively heavyset, successful mystery writer and a local celebrity in Pico Mundo. He serves as an unconventional mentor to Odd, using his literary background to offer philosophical advice. He actively encourages Odd to write down his experiences as a form of therapy.

Simon Varner is one of the newest officers to join the Pico Mundo police force. He patrols the town and asks questions about the strange occurrences happening around local businesses, crossing paths with Odd during the young cook's informal investigations.

Bern Eckles is another recent addition to the local police department. He works alongside Simon Varner and assists Chief Porter with administrative tasks, helping to run background checks on suspicious individuals in town.

Terri is the manager of the Pico Mundo Grille and a fiercely loyal surrogate mother figure to Odd. She possesses a deep obsession with Elvis Presley, believing his music represents a purer era. She actively supports Odd's well-being and lends him her car when he needs to investigate local mysteries.

Viola is a hardworking waitress at the Pico Mundo Grille and a mother to two young daughters. She experiences a disturbing, recurring dream in which she sees herself dead among a crowd of people, prompting Odd to intervene in hopes of changing her fate.

Odd's estranged mother lives comfortably on substantial alimony. She is emotionally volatile, self-absorbed, and entirely detached from her son's well-being. During his childhood, she utilized manipulation and threats of self-harm to maintain control, leaving Odd with lasting psychological scars.

Odd's wealthy father is a self-centered philanderer who shows little genuine interest in his son's life. He pursues a lifestyle focused on personal gratification and volatile romances, avoiding any real parental responsibility or emotional depth.

Penny is the ghost of a twelve-year-old girl from Odd's neighborhood. Unable to speak in the afterlife, she uses her lingering spirit to guide Odd to the man who murdered her, trusting the young cook to ensure justice is served.

Harlo is a former classmate of Odd's who commits a brutal crime in the neighborhood. When Odd confronts him, he reacts with extreme violence, leading to a destructive chase through residential backyards.

Mrs. Sanchez is Odd's kindhearted landlady. She suffers from a deep psychological fear of becoming "invisible," an anxiety rooted in her inability to process the tragic deaths of her loved ones. Odd takes special care to comfort her and validate her presence.

Karla is Chief Wyatt Porter's wife. She is steady, supportive, and fiercely devoted to her husband, keeping Odd informed about the Chief's status during highly stressful situations.

The silent ghost of Elvis Presley is a constant presence in Odd's life. He lingers in Pico Mundo, offering Odd silent companionship and emotional support as the young cook navigates dangerous supernatural investigations.

Shamus is a local radio DJ who happens to have blindness. When Odd discovers a mysterious card covered in braille, he visits Shamus at the station for a translation, leading to a disturbing revelation about the town's impending threat.

Jenna is a surgical nurse who knows Odd well. She is friendly, competent, and subtly flirts with Odd—advances he entirely misses due to his devotion to Stormy and his current anxiety.

Dr. Takuda is a usually cheerful university professor in Pico Mundo. Odd approaches him under the pretext of seeking college advice in order to ascertain his family's schedule and keep them safe from hovering dark spirits.

Sharlene is Viola Peabody's sister. She provides a safe, quiet environment away from the public when Viola takes Odd's advice to avoid crowds on a dangerously prophetic day.

Britney is the current, very young romantic companion of Odd's father. She is openly critical of Odd and represents the shallow, fleeting relationships his father prioritizes over family.

Granny Sugars is Odd's maternal grandmother. Though aware of her daughter's severe mental health issues, she prioritized her own wanderlust and gambling over protecting young Odd from a toxic environment.