Mercy (2026) Cast & Characters Guide
Mercy (2026) Cast & Characters: Who Plays Who + What Each Role Does
Mercy (2026) is a near-future sci-fi thriller built around a terrifying hook: an AI-run court that can decide guilt—and punishment—on a hard countdown. If you’re here to figure out who plays who (and what each character actually does in the story), this guide breaks down the main cast, key supporting players, and the roles that matter most to the mystery.
Watch a Mercy video (behind-the-scenes featurette)
Quick cast & character table (Mercy 2026)
Some listings credit Chris Pratt’s character as Detective Raymond, while other coverage and summaries commonly refer to him as Detective Chris Raven. This guide focuses on what the character does in the film either way: he’s the accused detective racing the clock.
| Actor | Character | What the role does (in plain English) |
|---|---|---|
| Chris Pratt | Detective Raymond (often referred to as “Chris Raven” in coverage) | The protagonist detective put on trial—he must investigate his own case in real time and fight the AI’s “probability of guilt.” |
| Rebecca Ferguson | Judge Maddox | The advanced AI judge running the case: judge, jury, and executioner—cold logic on a countdown. |
| Kali Reis | Jacqueline “Jaq” Diallo | The detective’s partner on the outside—pushing the investigation forward when the lead is physically trapped. |
| Annabelle Wallis | Nicole Raven | The detective’s wife and the case’s central victim—her life, connections, and timeline shape the mystery. |
| Chris Sullivan | Robert “Rob” Nelson | A close connection in the detective’s life (including recovery/support circles) who becomes important to the case’s personal stakes. |
| Kylie Rogers | Britt Raven | The detective’s daughter—emotionally central, and a pressure point the story keeps returning to. |
| Kenneth Choi | Ray Vale | A key figure tied to the detective’s past and professional history—part of the backstory fueling the present-day crisis. |
| Rafi Gavron | Holt Charles | Connected to Nicole’s work world—adds leads, questions, and potential motives as the investigation expands. |
| Jeff Pierre | Patrick Burke | A major thread in the personal side of the investigation—information about Nicole’s relationships and secrets runs through him. |
| Tom Rezvan | Governor | A political presence around the program—signals that Mercy’s AI justice system has high-level backing and public stakes. |
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Main characters: who plays who (and what they do)
Chris Pratt as the accused detective (Detective Raymond / “Chris Raven”)
He’s the story’s engine: a detective suddenly forced to defend himself inside a high-tech courtroom where the judge is an AI. The twist isn’t just “prove you’re innocent”—it’s that he must do it under a hard time limit, using surveillance, records, and case data that the system makes available. The character’s job in the plot is basically three roles at once: suspect, investigator, and defense.
Rebecca Ferguson as Judge Maddox (the AI judge)
Maddox is the face and voice of the Mercy program: a machine designed to make a “perfect” decision without human bias—at least on paper. In the movie’s structure, Maddox functions like an opponent in a thriller: always present, always calculating, always updating the situation. Her role isn’t just to “be scary AI” but to constantly force the detective to answer one question: what counts as proof in an algorithmic court?
Kali Reis as Jacqueline “Jaq” Diallo (partner on the outside)
Jaq is the practical counterweight to the AI courtroom: she can move through the real world, question people, chase leads, and connect dots that the trapped detective can’t. In a countdown thriller, that makes her role essential—she’s the character who can still create new information, not just react to what the system shows on screens.
Annabelle Wallis as Nicole Raven (the victim at the center of the case)
Nicole is the emotional heart of the mystery. Even when she’s not physically present, the story keeps circling her timeline, her relationships, and the hidden stresses in her life. In “who plays who” terms: this is the character whose connections determine which suspects, motives, and secrets become relevant.
Chris Sullivan as Robert “Rob” Nelson (close connection with big story weight)
Rob sits in the “inner circle” category—someone close enough to the detective (and connected to Nicole’s world as well) that his words and actions can change the direction of the investigation. In a film like Mercy, characters in this slot often do two jobs at once: they add personal stakes, and they can become a key hinge for suspicion, trust, or betrayal.
Kylie Rogers as Britt Raven (the daughter)
Britt raises the cost of failure. This isn’t just a procedural puzzle; it’s a family collapse happening under a public execution-style deadline. Her role adds a human layer to the tech premise: what happens to a kid when an algorithm labels a parent as guilty?
Supporting cast: more characters you’ll recognize while watching
- Kenneth Choi as Ray Vale: tied to the detective’s history and the film’s backstory pressure points.
- Rafi Gavron as Holt Charles: connected to Nicole’s orbit (work/social world), adding leads and complications.
- Jeff Pierre as Patrick Burke: a key thread in what Nicole was doing and who she was close to before the case detonates.
- Tom Rezvan as the Governor: a reminder the AI justice system isn’t theoretical—it’s policy, power, and optics.
- Michael C. Mahon as Booking Sergeant: appears in the law-enforcement machinery around the arrest/process.
- Renata Ribeiro as Reporter: reinforces that this case is being watched and framed publicly, not just privately.
- Ryan Hailey as Homeless Man: part of the city texture and the chain of details the case pulls in.
- Mike Tarnofsky as Captain Havelock: another piece of the LAPD hierarchy and institutional pressure.
How the Mercy court works (spoiler-light)
Mercy’s core concept is simple, brutal, and very “now”: an AI system runs capital cases and gives the accused a strict window to prove innocence. Instead of courtroom theatrics, the trial plays like a real-time investigation—screens, feeds, records, and reconstructions. That structure is why the cast list matters so much: nearly every character is either (1) a source of crucial data, or (2) a human relationship the AI system can weaponize.
The movie’s tension comes from a clash of standards: humans think in motive, context, and doubt; the AI thinks in thresholds, probabilities, and “acceptable error.” So every character functions as a lever—someone who can move those numbers in the right direction, or lock them in place.
What Reddit reactions say about Mercy (2026)
If you like checking the temperature before you press play, Reddit is full of two kinds of Mercy talk: (1) craft/format debates (IMAX, screen-heavy filmmaking, the “countdown” feel), and (2) premise arguments about whether the AI court rules make sense—and whether the movie uses that idea in a satisfying way.
Reddit reviews & discussion thread energy (r/movies)
Mercy - Reviews Discussion Thread | Starring Chris Pratt, Rebecca Ferguson
Reddit box office & audience-score chatter (r/boxoffice)
‘Mercy’ Rotten Tomatoes Verified Audience Score Thread
What Reddit IMAX viewers say about the presentation (r/imax)
‘Mercy’ had a pretty lame use of IMAX aspect ratio.
FAQ: Mercy (2026)
Who plays who in Mercy (2026)?
The leads are Chris Pratt as the accused detective (often listed as Detective Raymond and also commonly referred to as “Chris Raven”), and Rebecca Ferguson as Judge Maddox, the AI judge. Key supporting cast includes Kali Reis, Annabelle Wallis, Chris Sullivan, and Kylie Rogers.
What does Judge Maddox do in Mercy (2026)?
She’s the AI authority running the trial—evaluating evidence, driving the countdown pressure, and determining whether the defendant lives or dies.
Is Mercy (2026) more action or more thriller?
It plays like a real-time thriller with action pulses—less “traditional courtroom drama,” more “countdown survival investigation.”
Where can I watch Mercy (2026)?
Release availability changes by region and platform. If you’re seeing it listed for digital rental/purchase, check your local storefront listings and dates.