Dream Demon

An upper-class London schoolteacher whose wedding plans amplify her anxiety. She is plagued by nightmares where her fiancé appears as a violent figure, and she is drawn into a shared dream world that begins to affect her waking life. Despite her poise, Diana shows vulnerability and a stubborn resolve to uncover the truth behind the visions.

A Los Angeles tourist visiting Diana's home to uncover her family origins. She hid her own memory gaps about her parents, and forms a close bond with Diana as she helps confront the supernatural threats. Jenny is curious, brave, and driven by a need to understand her past.

Diana's therapist who interprets the dreams as stress-related and explores the possibility of astral projection. Deborah acts as a rational foil to the supernatural events, guiding the women while realizing how dream imagery maps to real danger. She monitors the situation and tries to keep Diana grounded.

An investigative journalist who probes into Oliver's finances and wedding motives. He and Peck threaten Diana outside the house, driving the tension and helping reveal the real-world consequences of the haunting. Paul embodies external scrutiny and relentless pursuit of truth.

Diana's wealthy fiancé whose marriage is revealed to be financially strategic rather than romantic. His fortunes decline, and his motives come under question, exposing class pressures and personal insecurity within the engagement. He is a catalyst for the drama surrounding Diana's psyche.

An aggressive photographer who harasses Diana on the street and surrounds the house with menace. In dreams, Peck becomes a grotesque, threatening figure, symbolizing invasive external pressures and the fear of violation. He embodies the male gaze turned violent.

A violent artist who subjects Jenny to abuse in his basement studio, and who dies in a fire sparked by his own neglect. He represents intergenerational trauma and the dangerously controlling power of art and parental figures. His memory fuels the haunting and Jenny's fear of revisiting the past.

The young Jenny, a repressed child whose past trauma is revealed through the film’s flashbacks and dream imagery. Her presence in the basement scenes marks the origin of the memories that haunt Diana and Jenny as adults. She symbolizes innocence lost to violence.