The Backrooms cast features Chiwetel Ejiofor, Renate Reinsve and Mark Duplass. This info article contains minor spoilers and character details for Kane Parsons’ 2026 movie on Amazon. Check out more cast guides in Vague Visages’ Know the Cast category.

Backrooms takes place in 1990 San Jose, California. As a furniture store manager copes with a divorce, he discovers a series of extradimensional spaces. The narrative follows the main protagonist as he and his female therapist experience distorted versions of their respective realities. Here’s every actor and character in Backrooms, an adaptation of Kane Parsons’ web series.

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Backrooms Cast: Chiwetel Ejiofor as Clark

Character Profile: A furniture store owner. He is an alcoholic and failed architect who feels alone after divorcing his wife. Clark’s life spirals out of control as he seeks therapy while investigating mysterious spaces within his store.

Ejiofor’s Resume: Okwe in Dirty Pretty Things (2002), Adrian Helmsley in 2012 (2009), Solomon Northup in 12 Year a Slave (2013), Copley in The Old Guard (2020), Faraday in The Man Who Fell to Earth (2022)

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Backrooms Cast: Renate Reinsve as Mary

Character Profile: Clark’s therapist. She is known for her self-help audio series. Mary deals with childhood trauma while treating Clark.

Reinsve’s Resume: Renate in Oslo, August 31st (2011), Anemone in Best før (2017-19), Julie in The Worst Person in the World (2021), Carolyn Polhemus in Presumed Innocent (2024), Ingrid in A Different Man (2024)

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Backrooms Cast: Mark Duplass as Phil

Character Profile: A scientist. He watches surveillance footage of Clark’s store. Phil works for a company that researches the “backrooms.”

Duplass’ Resume: Pete Eckhart in The League (2009-15), Jack in Your Sister’s Sister (2011), Kenneth in Safety Not Guaranteed (2012), Josef in Creep (2014), Chip Black in The Morning Show (2019-23)

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Backrooms Cast: Finn Bennett as Bobby

Character Profile: The boyfriend of Clark’s manager. He helps investigate the backrooms. Bobby gets pulled into an extradimensional space.

Bennett’s Resume: Peter Prior in True Detective (2024), Cole Atwood in Black Doves (2024), John in Warfare (2025), Prince Aerion “Brightflame” Targaryen in A Knight of the Seven Kingdoms (2026), Olly Hatton in Prisoner (2026)

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Backrooms Cast: Lukita Maxwell as Kat

Character Profile: Clark’s employee. She is a furniture store manager who dates Bobby. Kat gets targeted by an entity in the backrooms.

Maxwell’s Resume: Jillian in Speechless (2016), Delilah in Generation (2021), Alice in Shrinking (2023-), Iris in Afraid (2024), Cody in An Autumn Summer (2024)

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The Backrooms cast also includes:

• Avan Jogia as Naren Warne
• Robert Bobroczkyi as Pirate Clark
• Ember Ambrose as Young Mary
• Krista Kosonen as Nora
• Philip Granger as Meterman
• Katharine Isabelle as Robin
• Peter New as Big Wayne
• Sarah Hayward as Nurse
• Natalie Moon as Phil’s Wife

Q.V. Hough (@QVHough) is Vague Visages’ founding editor.