S2
E1
E1
Be Right Back
After Ash dies in a car accident, his girlfriend Martha uses a service that creates an AI version of him based on his social media presence, escalating from chatbot to synthetic body with devastating emotional consequences.
Ash Starr
81
Character Arc
Ash Starr is a warm, easygoing young man whose sudden death in a car accident sets in motion one of Black Mirror's most emotionally devastating explorations of grief and technology. In life, Ash is a casual, social-media-obsessed boyfriend to Martha (Hayley Atwell) — the kind of person whose online presence is vast and curated, capturing the surface of his personality in thousands of posts, photos, and comments while inevitably missing the irreplaceable depth of a real human being. His death is abrupt and senseless, leaving Martha pregnant and alone. It is in the aftermath that Ash becomes something else entirely: first a chatbot trained on his digital footprint, then a voice on the phone, and finally a synthetic physical replica standing in their home.
The tragedy of Ash's character lies in the uncanny valley between the real person and his technological resurrection. Each iteration — text, voice, body — is simultaneously more like Ash and more obviously not him. The synthetic Ash is polite, accommodating, and responsive, but he lacks the unpredictability, the stubbornness, the capacity for genuine conflict that made the real Ash human. Domhnall Gleeson delivers a subtle, deeply affecting performance in both versions of Ash, capturing the warmth of the living man and the hollow pleasantness of the replica. The episode's heartbreaking conclusion — with the synthetic Ash relegated to the attic, brought out only for visits from Martha's daughter — speaks to the impossibility of replacing human connection with technology, no matter how sophisticated. Ash Starr, or what remains of him, becomes a monument to what we lose when we confuse a digital footprint with a soul.
Key Episodes
Fan Ecosystem
Videos & Content
Black Mirror - Be Right Back Trailer
Be Right Back - The Tragedy of Digital Resurrection
Fan Heat Index Breakdown
Engagement
83
Social Activity
78
Meme Velocity
72
Fan Art Density
80
Fandom Longevity
84
Frequently Asked Questions
Domhnall Gleeson plays Ash Starr in the Black Mirror episode "Be Right Back" (Season 2, Episode 1). Gleeson portrays both the living Ash and the synthetic replica, bringing subtle differences that highlight the uncanny valley between a real person and their digital reconstruction.
Be Right Back follows Martha (Hayley Atwell), a young woman grieving the sudden death of her boyfriend Ash. She begins using a service that creates an AI version of Ash based on his social media and online activity, escalating from text messages to phone calls to a physical synthetic replica. The episode explores grief, digital identity, and the limits of technology in replacing human connection.
While the physical synthetic body remains science fiction, the concept of AI chatbots trained on a deceased person's digital footprint has become increasingly real. Companies have developed services that create conversational AI from text messages and social media posts, making Be Right Back one of Black Mirror's most prescient episodes.
In the final scene, set years later, Martha has kept the synthetic Ash in the attic of their home. Her young daughter is allowed to visit him on weekends. The ending suggests Martha could neither fully accept the replica as a replacement for Ash nor bring herself to destroy it, leaving the synthetic trapped in a liminal existence.