The antagonist operating under a false identity, with a hidden violent nature and a manipulative, calculating disposition.

A high school librarian with a fascination for true crime, whose extensive knowledge becomes crucial as the trip turns dangerous.

A senior rafting guide initially portrayed as carefree, who evolves into a resilient leader after facing traumatic events.

A pragmatic and emotionally grounded character, whose bond with her sister and strength aid in the group’s survival.

Calm and competent, this veterinarian's medical skills and steady demeanor are pivotal for the group’s survival.

A survivor who becomes a symbol of the group's collective will, requiring and inspiring acts of compassion and care.

Kaia’s late husband, who appears in her memories and as a guiding voice, symbolizing love and survival instinct.

Rafting guides whose vibrant personas contribute to an initially safe atmosphere, disrupted by unexpected violence.