Sally's older sister, whose life and death significantly influence the other characters, especially Sally's development.

Sally's romantic interest, whose life is intertwined with hers through shared history and profound emotions following a significant tragedy.

Sally and Kathy's mother, struggling under the weight of grief, and searching for ways to cope with her loss.

Sally's father, whose practical and safety-oriented worldview is challenged by tragedy, leading to emotional withdrawal.

A stable and conventional young man who offers a path of normalcy and ambition to Sally but lacks an understanding of her complex emotional landscape.

Sally’s close friend, who provides a connection to typical teenage experiences amidst her more complex life situation.

Kathy’s best friend, representing a link to the vibrant life Kathy leaves behind.

A peer of Sally and Billy, embodying the immaturity and casual cruelty typical of adolescence.