Sarah (played by Ahna O'Reilly) is a protagonist in Sleepwalker.
The protagonist experiencing severe sleepwalking and reality shifts after her husband Jonathan's death. Initially believing she is Sarah Foster, she gradually discovers she is actually Anna Wells, an obsessive fan who shot Jonathan and is currently in a coma. Her fragmented memories drive the narrative. Dr. Scott White (played by Richard Armitage) is a protagonist in Sleepwalker.
A sleep clinic physician monitoring Sarah's brain activity. He explains how sleep disorders distort perception, offers protective rides, intervenes during stalker attacks, and ultimately guides Sarah to confront her suppressed memories and true identity. Warren (played by Haley Joel Osment) appears in Sleepwalker.
The dark-haired stalker identified as Warren Lambert. He relentlessly pursues and attacks Sarah, with his suffocation attempt directly triggering the surfacing of repressed memories regarding her violent past and connection to Jonathan. Dr. Koslov (played by Kevin Zegers) appears in Sleepwalker.
A sleep clinic doctor who monitors Sarah's initial scans and relocates her for observation. His subsequent failure to recognize her highlights the shifting layers of Sarah's fractured reality and professional detachment. Dawn (played by Rachel Melvin) appears in Sleepwalker.
Sarah's original roommate who abruptly returns after a reality reset. Her sudden reappearance contrasts with Sarah's disorientation, emphasizing the arbitrary transitions between the protagonist's fragmented dream states.
Sleepwalker (2017) character relationship network mapped with AI analysis. Explore the connections, alliances, and conflicts between characters.
Characters
Sarah
(played by Ahna O'Reilly) — protagonist
The protagonist experiencing severe sleepwalking and reality shifts after her husband Jonathan's death. Initially believing she is Sarah Foster, she gradually discovers she is actually Anna Wells, an...
Dr. Scott White
(played by Richard Armitage) — protagonist
A sleep clinic physician monitoring Sarah's brain activity. He explains how sleep disorders distort perception, offers protective rides, intervenes during stalker attacks, and ultimately guides Sarah...
Warren
(played by Haley Joel Osment) — supporting
The dark-haired stalker identified as Warren Lambert. He relentlessly pursues and attacks Sarah, with his suffocation attempt directly triggering the surfacing of repressed memories regarding her viol...
Dr. Koslov
(played by Kevin Zegers) — supporting
A sleep clinic doctor who monitors Sarah's initial scans and relocates her for observation. His subsequent failure to recognize her highlights the shifting layers of Sarah's fractured reality and prof...
Dawn
(played by Rachel Melvin) — supporting
Sarah's original roommate who abruptly returns after a reality reset. Her sudden reappearance contrasts with Sarah's disorientation, emphasizing the arbitrary transitions between the protagonist's fra...
Key Relationships
Dr. Koslov → Dr. Scott White
(Professional Colleagues)
Sarah → Sarah
(Meta Alternate Identity)
Sarah → Dawn
(Social Roommates)
Sarah → Dr. Koslov
(Professional Doctor/Patient)
Sarah → Warren
(Conflict Stalker/Victim)
Sarah → Dr. Scott White
(Professional Doctor/Patient)
Story Analysis
A psychological thriller exploring fractured identity, repressed trauma, and the blurred lines between dreams and reality.
