While Alan is the sole playable character, the supporting cast plays a vital role in the narrative and occasionally provides assistance. Understanding their motivations and roles can deepen your appreciation of the story.

- Alice Wake: Alan's wife, a photographer who is afraid of the dark. Her disappearance is the catalyst for Alan's nightmare. Her well-being is Alan's primary motivation.
- Barry Wheeler: Alan's eccentric agent and best friend. Barry provides comic relief and, at times, unexpected assistance. He often serves as a beacon of hope and sanity in the escalating madness.
- Sheriff Sarah Breaker: The no-nonsense sheriff of Bright Falls. Initially skeptical of Alan's claims, she eventually becomes a crucial ally as she witnesses the supernatural events firsthand. She provides valuable information and occasional backup.
- Rose Marigold: The waitress at the Oh Deer Diner and a huge fan of Alan's work. She seems to have a connection to the supernatural elements of Bright Falls, often appearing in unexpected places.
- The Anderson Brothers (Odin and Tor): Elderly rock stars who live in a secluded cabin. They have a history with the Dark Presence and provide cryptic but important clues to Alan.
These characters, while not directly impacting Alan's 'build,' are integral to the story and provide context, motivation, and occasional aid in Alan's fight against the darkness.