Regretting You cast and character guide: Who plays whom in the upcoming romance drama adaptation starring Allison Williams?

Allison Williams' romance drama film Regretting You is gearing up for a theatrical premiere this month in the United States, and the star-studded project has been garnering quite some social media attention for a while now. Josh Boone's upcoming movie, which is an adaptation of Colleen Hoover's novel going by the same name, will also feature an ensemble cast including Dave Franco, Willa Fitzgerald, Scott Eastwood, and Mckenna Grace.

The story revolves around a family that has recently been struck by tragedy, and the ones left behind are trying to figure out ways to cope with the loss while maintaining a healthy living environment. Paramount Pictures will release the Allison Williams starrer Regretting You in the United States on October 24, and here's a quick guide to the stars and their respective characters set to appear in the movie.

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Regretting You cast and character guide

Most of the cast members of Regretting You were announced back in 2024 when the film first became official, while Scott Eastwood & Reacher star Willa Fitzgerald joined the project the following year. According to sources, the 116-minute-long movie was primarily filmed in different parts of Atlanta.

The summary of the storyline for Regretting You, per IMDb, reads:

"Centers on the strained relationship between young mother Morgan Grant and her teenage daughter Clara, exacerbated by Morgan's husband Chris's tragic death, forcing them to navigate life's challenges together.

(1) Allison Williams as Morgan Grant

Award-winning actress Allison Howell Williams will take the lead in Regretting You, playing the part of a young woman named Morgan Grant who recently lost her husband in a tragic car crash. Williams rose to prominence and bagged a Critics' Choice Television Awards nomination for her contribution to the hit HBO drama Girls.

She is a well-known face from the sci-fi horror franchise M3GAN, which recently released its first sequel this year, and her appearance in the 2017 psychological horror Get Out is also worth mentioning. Here are some of Allison Williams' notable projects:

• American Dreams (2004)
• The Simpsons (2015)
• The Perfection (2018)
• Seasame Street (2019)
• Horizon Line (2020)
• Saturday Night Live (2023)
• Fellow Travelers (2023)

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(2) Dave Franco as Jonah Sullivan

Dave Franco will play the part of Jonah Sullivan in Regretting You, the husband of Morgan's younger sister, Jenny Davidson, who also passed away in the same car accident mentioned above. Franco is a popular face from the heist film franchise Now You See Me and Nicholas Stoller's comedy saga Neighbors.

The major turning point in the star's career came with his role in the 2012 action comedy film 21 Jump Street. Following the same, Dave Franco appeared in several hit projects, including Unfinished Business (2015), The Disaster Artist (2017), ^ Underground (2019), Day Shift (2022), Together (2024), Scrubs (2009-2010), The Now (2021), The Studio (2025), and Long Story Short (2025). Franco's directorial debut, The Rental, is another well-known project alongside his better half, Alison Brie.

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(3) Willa Fitzgerald as Jenny Davidson

Fan favorite female protagonist from Prime Video's Reacher, Willa Fitzgerald, will appear in the role of Morgan's younger sibling, Jenny Davidso. Jenny was in the car with Morgan's husband when the accident took place. Unfortunately, she also did not survive the fall.

Willa Fitzgerald has also contributed to multiple projects throughout her acting career, namely Alpha House, Strange Darling, A House of Dynamite, The Fall of the House of Usher, Alarum, and Blood Money. In Lee Child's Reacher adaptation by Nick Santona, she played the role of Officer Roscoe in Season 1 and was also the love interest of our titular hero (portrayed by Alan Ritchson).

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(4) Mckenna Grace as Clara Grant

Young talent from The Handmaid's Tale and Emmy-nominated star Mckenna Grace will play the part of Clara Grant, Morgan's only daughter. Grace has also maintained a consistent streak with hit horror projects, including the Annabelle franchise.

Here's a list of some other notable projects where Mcknena Grace's appearance is worth mentioning:

• The Ghostbusters franchise
• Gifted
• The Young and the Restless (played the role of Faith Newman and also got nominated for a Critics' Choice Award in the Best Young Performer category)
• The Bad See franchise
• A Friend of the Family
• Crash & Bernstein

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(5) Scott Eastwood as Chris Grant

The Longest Ride star Scott Eastwood will portray Chris Grant, the late husband of the protagonist, Morgan, and Clara's dad. Scott has also worked alongside his father and Hollywood icon, Clint Eastwood, in multiple projects over the years, including the 2006 war drama Flags of Our Fathers and Gran Torino (2008). Some of his other notable works include:

• Pacific Rim Uprising
• Wrath of Man
• The Fate of the Furious
• Faxt X
• Suicide Squad
• Texas Chainsaw
• Invictus
• Trouble with the Curve
• Snowden

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(6) Additional cast members

Among other members in the cast of Regretting You, we have The Black Phone star Mason Thames playing the role of a boy named Miller Adams. He is also the potential romantic interest of Morgan's daughter, Clara. Clancy Brown, who rose to fame with his iconic Frankenstein's monster role in the 1985 gothic horror The Bride, will portray Miller's grandfather, aka Hank Adams or just "Gramps".

On the other hand, rising star Sam Morelos has been cast as a girl named Lexie, and she will also be joined by Ethan Costanilla in the role of Efren. The descriptions of the characters Lexie and Efren are still being kept under wraps.

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