Regretting You Cast Revealed: Who Plays Who in Colleen Hoover’s New Adaptation

Hollywood’s Hoover wave rolls on: Regretting You hits screens after last year’s It Ends With Us, with two more adaptations queued for 2026. Less messy than 2024’s lightning rod, it still packs enough drama to keep the fandom buzzing.
Another year, another Colleen Hoover adaptation. 'Regretting You' lands in theaters October 24, 2025, hot on the heels of 2024's 'It Ends With Us' and with two more Hoover titles still headed our way in 2026. This one is a romantic drama from Josh Boone (yep, the 'Fault in Our Stars' director), and while it is not the chaos bomb last year's movie was, it still wades into messy territory: grief, betrayal, secrets, and the kind of family fallout that sticks.
What this one is actually about
The setup is simple, the fallout is not. Morgan (Allison Williams) loses her husband, Chris (Scott Eastwood), in a sudden car accident. Also in the car: Morgan's sister, Jenny (Willa Fitzgerald), who dies shortly after. The secret Morgan discovers in the wreckage is the engine for the whole story: Jenny and Chris were having an affair. Morgan decides to keep that from her teenage daughter, Clara (Mckenna Grace), which sounds noble on paper but turns their house into a pressure cooker. Clara reads her mom's distance as coldness toward her dad's memory. Cue the spiral: lashing out, shutting down, and basically detonating every boundary in sight.
Nearby in the blast radius is Jonah (Dave Franco), Jenny's husband, who is processing the same gut punch and finds himself increasingly drawn to Morgan. Meanwhile, Clara leans on a classmate, Miller (Mason Thames), a quietly rebellious type who becomes the one person who meets her where she is. He has one big scene that basically swivels the story back toward honesty and repair. The movie plays with regret, second chances, and the way grief makes people do absolutely wild calculus in the name of protecting each other.
The cast, and why they work here
Allison Williams as Morgan Grant
Williams takes on the classic grieving-widow-with-a-teen-daughter role and adds steel. Morgan is trying to hold the family together while hiding a truth that would break her kid in half. It is a lonely, no-win position, and Williams leans into the quiet damage of someone juggling love, anger, and the ugliest kind of honesty.
Mckenna Grace as Clara Grant
If you have watched Grace grow up from 'Gifted' to 'The Handmaid's Tale', you know she can do volatility without turning it into a tantrum. As Clara, she channels the mess of teenage grief: fun and lively one day, scorched earth the next. She thinks her mom is disrespecting her dad's memory, and she fights that in every way she can until the truth finally claws its way out.
Scott Eastwood as Chris Grant
Eastwood's role is small but key. Chris' death triggers the story, and the affair is the rot at its center. The movie uses his warmth in memory to show how different people hold the same person: to Morgan, he is a reminder that appearances lie; to Clara, he is the devoted dad who could do no wrong.
Willa Fitzgerald as Jenny Davidson
Riding a wave from 'Reacher' and Netflix's 'Pulse', Fitzgerald plays the sister whose choices blow up two families. Jenny dies after the crash, and only then do the pieces fall into place. In the aftermath, she is both a lost loved one and the source of the deepest betrayal for Morgan and for Jonah.
Dave Franco as Jonah
Franco dials down the wisecracks you remember from 'Now You See Me' and goes straight for wounded, tentative, and searching. Jonah is grieving and furious, but he is also drawn to the one person who understands the size of the crater, which complicates things fast.
Mason Thames as Miller
Thames, who broke out with 'The Black Phone' and is back this year with its sequel, plays the kid you hope your teenager finds on their worst day. Miller is funny when it helps, quiet when it matters, and unflinchingly honest when Clara's revenge plan starts dragging him into the mud. He very nearly steals the movie with one pivotal moment that forces Clara to face what she is really running from.
Rounding out the ensemble: Clancy Brown and Sam Morelos in supporting roles.
Quick specs
- Director: Josh Boone
- Screenplay: Susan McMartin
- Based on: 'Regretting You' by Colleen Hoover (2019)
- Main cast: Allison Williams, Mckenna Grace, Dave Franco, Mason Thames, Scott Eastwood, Willa Fitzgerald, Clancy Brown, Sam Morelos
- Runtime: 117 minutes
- Budget: $30 million
- Rotten Tomatoes: 17%
- IMDb: 6.4
- Theatrical release: October 24, 2025
- Context: Follows 2024's 'It Ends With Us'; two more Hoover adaptations are on deck for 2026
Bottom line: it is a glossy tearjerker with some thorny choices baked in. If you can handle characters making bad calls for what they think are the right reasons, the performances carry the weight.