An unnamed young woman currently in a seven-week relationship with Young Jake. She possesses a highly observant nature and fiercely values her independence, leading her to secretly question the necessity of romantic commitment. During a snowy road trip to meet her boyfriend's parents, she experiences mounting social anxiety and feelings of guilt while receiving unsettling anonymous voicemails.

A tall, lean physics postdoctoral student who studies ice crystals and proteins. He is highly intelligent, enjoys crossword puzzles, and actively seeks interpersonal connection to alleviate his underlying loneliness. He eagerly drives his new girlfriend to his rural childhood farm to introduce her to his family, seemingly unaware of the growing emotional distance between them.

A janitor at a large high school in a quiet rural community. Discussed primarily by his former colleagues in brief interludes, he is described as a solitary and standoffish man who struggled with profound depression and isolation. The exact circumstances of his life form an ongoing mystery for the locals who knew him.

Two unidentified individuals who work at the local high school. In brief conversational interludes, they discuss the shocking nature of a recent tragedy involving a colleague. They represent the voice of the rural community, expressing curiosity while maintaining an emotional distance from the events.

An anonymous individual who leaves persistent, disturbing voicemails for the protagonist. The voice sounds like an older man using a flat, artificial female intonation. He repeatedly insists that there is "one question" left to resolve, significantly increasing the protagonist's anxiety.

A woman living in an aging stone farmhouse who struggles with severe tinnitus. She attempts to compensate for her hearing loss by smiling broadly and intensely, a habit that makes her guests deeply uncomfortable. Her behavior during dinner is erratic, including sudden wardrobe changes between courses.

An older man who helps maintain the family's decaying rural property. He gives a tour of the frozen farm animals and shares unsettling stories about sick livestock. He attempts to welcome his son's new girlfriend but appears out of touch with conventional social boundaries.

An older driving instructor from the protagonist's teenage years. He experiences extreme loneliness and attempts to cross professional boundaries by sharing personal candy and discussing Jungian philosophy with his teenage student while parked during a storm.

A musician and former girlfriend of Young Jake from just after his high school years. She serves as a point of intense curiosity for the protagonist, who questions the nature of her past relationship with the man she is currently dating.

An estranged family member mentioned by Young Jake. He suffers from severe psychological instability, struggles significantly to connect with others, and was eventually cut out of the family's life.