The Last House Cast: Greta Lee, Wagner Moura, and the Actors Who Play Ruth and Graham
By FriendPet Team · 2026-08-10 · 10 min
The Last House arrived on Netflix August 7, 2026 — a claustrophobic sci-fi thriller about a family sealed inside their home with no way out. Once the credits roll, the cast list is usually the next stop: who plays the parents, which actors share the kids as they grow up, and where you might have seen them before.
This guide covers the main roles, a full character-to-actor table, and a light note on why the film uses multiple performers for Ruth and Graham — without touching the ending.
What is The Last House?
Directed by Louis Leterrier (Now You See Me, Lupin) from a screenplay by Matthew Robinson, the film follows the Delgado family after doors and windows stop opening. Rain falls outside; days stretch into weeks, then years. Food runs low, tempers flare, and something beyond the walls keeps them trapped.
Netflix lists the runtime at 1 hour 52 minutes, rated PG-13. Greta Lee and Wagner Moura anchor the story as parents Ann and Jason; their children Ruth and Graham are played by more than one actor as time passes inside the house.
For the official trailer and premise, see Netflix Tudum. The title page is here on Netflix.
Greta Lee and Wagner Moura as Ann and Jason Delgado
Greta Lee plays Ann Delgado, the mother trying to hold the household together as isolation wears everyone down. Lee drew wide attention for Past Lives (2023) and starred in Russian Doll; she also appeared in A House of Dynamite. In Tudum interviews she described growing up on survival stories with a twist — which fits a film built around ordinary people in an extraordinary trap.
Wagner Moura plays Jason Delgado, the father who first realizes the family cannot leave. Moura is familiar from Narcos, Narcos: Mexico, and the Oscar-nominated The Secret Agent. He has spoken about the film as something viewers may recognize from their own family dynamics — protection, humor, conflict — even when the situation is extreme.
Together, Lee and Moura carry most of the emotional weight. The kids’ storyline depends on how convincingly the younger and older actors feel like the same people aging in place.
The Last House cast — full role list
| Role | Actor | Notes |
|---|---|---|
| Ann Delgado | Greta Lee | Mother; Past Lives, Russian Doll |
| Jason Delgado | Wagner Moura | Father; Narcos, The Secret Agent |
| Ruth Delgado (child) | Riley Chung | Early years; The Hunger Games: The Ballad of Songbirds & Snakes |
| Ruth Delgado (teen) | Emma Ho | Later years; The Expanse, Titans, Star Trek: Strange New Worlds |
| Ruth Delgado (adult, voice) | Arden Cho | Voice only; KPop Demon Hunters, Teen Wolf |
| Graham Delgado (child) | Noah Alexander Sosnowski | Younger Graham |
| Graham Delgado (older) | Gabriel Barbosa | Older Graham; May December |
Additional credits and production details appear on the Wikipedia entry and entertainment cast roundups such as Radio Times.
Why three actors play Ruth (and two for Graham)
The Delgados do not experience a normal week. Isolation stretches long enough that Ruth and Graham visibly age on screen — so the film casts different performers for different stages rather than aging makeup alone.
Riley Chung opens the role as young Ruth. Emma Ho takes over as Ruth enters her teens. Arden Cho provides the voice of adult Ruth; she does not appear on camera in that role, but her voice is part of how the story is framed. That makes Ruth the character with the most credited performers — a detail many viewers look up after a first watch.
Graham follows the same idea with two on-screen actors: Noah Alexander Sosnowski as the younger version and Gabriel Barbosa as the older one. The handoff matters because the house itself is designed to show wear over time — production designer Kevin Jenkins built a set that could deteriorate alongside the family, a choice Louis Leterrier has highlighted in press coverage.
If you are comparing faces across the timeline, the Tudum cast feature is a reliable starting point alongside the table above.
Behind the camera
Louis Leterrier directed; Matthew Robinson wrote the script. The project was announced under the working title 11817 before Netflix picked it up and Moura joined alongside Lee.
Survival consultant Megan Hine worked with the cast on believable ways a trapped family might stretch supplies and routines. Leterrier also leaned on practical effects and shot part of the film on 35 mm for a textured, grounded look — closer to location-based thrillers than pure green-screen spectacle.
That craft shows up in small details: appliances that break down, toys that weather, rooms that feel lived-in. It supports the performances rather than replacing them.
After the movie: cast pages and discussion tabs
A film this contained tends to send people back to the browser — cast lists on Tudum, Wikipedia, or “who played young Ruth” threads. Those tabs can pile up fast while you compare credits or read spoiler-free reviews.
If you want a small companion on those pages, FriendPet turns a photo you own or have permission to use into a webpage desk pet — a pet, a friend who agreed, or anyone in on the joke.
Your first desk pet can be created free (welcome credits after sign-in). Extension install is free too.
How to make one
- Open the FriendPet popup — try a built-in pet, or tap Make my own desk pet.
- Choose a clear photo, then tap Create pet.
- Wait 1–3 minutes (it can keep going in the background).
Enable it — and what you get
- When you see Your pet is ready, tap Enable on pages.
- On a normal tab, click for a speech bubble; right-click for actions, presets, quiet, or hide.
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FAQ
Who plays Ruth in The Last House?
Young Ruth is Riley Chung; teenage Ruth is Emma Ho; adult Ruth’s voice is Arden Cho (voice only, not on screen).
Who plays Graham?
Noah Alexander Sosnowski plays younger Graham; Gabriel Barbosa plays the older version.
When did The Last House come out on Netflix?
August 7, 2026, streaming worldwide on Netflix.
How long is The Last House?
About 1 hour 52 minutes (112 minutes), rated PG-13.
Is The Last House based on a true story?
No. It is an original sci-fi thriller written by Matthew Robinson and directed by Louis Leterrier for Netflix.
Is this official FriendPet merchandise?
No. FriendPet uses photos you provide — not Netflix stills or studio assets.
Can I use a cast photo for my desk pet?
Use a photo you own or have permission to use. Do not use copyrighted promo images without rights.
Quick wrap
The Last House pairs Greta Lee and Wagner Moura with a carefully split child cast as Ruth and Graham age in isolation. For credits and context, stick to Netflix Tudum and the official title page. If you want a little company while you browse cast pages afterward, FriendPet is ready when you are.