All Her Fault cast: Sarah Snook and Dakota Fanning star

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“All Her Fault” is a suspenseful drama with a disturbing core idea that will likely frighten many, particularly parents. The story revolves around the puzzling disappearance of a young boy during what was thought to be a simple playdate.

When Marissa Irvine (Sarah Snook) goes to pick up her son, she discovers a woman who doesn’t recognize either of them. As the search intensifies, hidden secrets begin to emerge, revealing that the Irvine family isn’t as perfect as it seems and may be hiding a lot more than they let on.

Sarah Snook, known for her role in Succession, stars as Marissa, a mother dealing with loss. Dakota Fanning plays Jenny, a new friend who supports her. Jake Lacy (from Apples Never Fall) joins them as Marissa’s husband, Peter, and the cast also includes actors you may recognize from popular shows like The Bear, Insecure, and Kaos.

But who’s who in All Her Fault? Read on to find out more about the cast of the new drama.

All Her Fault cast: Sarah Snook and Dakota Fanning star

Here’s a complete list of the actors in All Her Fault. Keep reading to learn about their characters and where else you might recognize them.

  • Sarah Snook as Marissa Irvine
  • Jake Lacy as Peter Irvine
  • Dakota Fanning as Jenny Kaminski
  • Michael Peña as Detective Alcaras
  • Sophia Lillis as Carrie Finch
  • Abby Elliott as Lia Irvine
  • Daniel Monks as Brian Irvine
  • Jay Ellis as Colin Dobbs
  • Thomas Cocquerel as Richie Kaminski
  • Duke McCloud as Milo Irvine
  • Kartiah Vergara as Ana Garcia

Sarah Snook as Marissa Irvine

Marissa is a busy mom and entrepreneur who runs her own company with her friend and partner, Colin. Her life is turned upside down when she goes to collect her son, Milo, from a playdate only to discover he’s missing, launching a desperate search for him and the truth.

You probably recognize Sarah Snook from her popular role in the HBO series Succession, where she also worked as an executive producer. She’s also appeared in films like Sisters of War, Run Rabbit Run, and The Beanie Bubble, and recently served as an executive producer on All Her Fault.

Jake Lacy as Peter Irvine

Peter is a leading professional, as successful and busy as his wife, Marissa. They decided to hire a nanny so they could both continue working, but this decision creates tension after their son, Milo, disappears.

You might recognize Jake Lacy from shows like The White Lotus, A Friend of the Family, and Apples Never Fall. He’s also appeared in Significant Other, High Fidelity, Girls, and Better With You.

Dakota Fanning as Jenny Kaminski

Jenny is another mom at Milo’s school who works in book publishing. She’s busy balancing her job with family life, and she and her husband often argue because she feels he doesn’t help enough around the house. After Milo goes missing, Jenny becomes a source of support for Marissa.

You might recognize Dakota Fanning from her work in popular shows and movies like The Twilight Saga, The Watchers, The Alienist, The First Lady, and the Netflix series Ripley.

Michael Peña as Detective Alcaras

Detective Alcaras is in charge of finding Milo’s missing child. He’s working hard to uncover the truth, which appears to be more complicated than it seems.

You probably recognize Michael Peña from shows like Narcos: Mexico and Jack Ryan, or from movies like Ant-Man and the Wasp, American Hustle, and End of Watch.

Sophia Lillis as Carrie Finch

Carrie is Jenny’s new nanny. She recently joined the family to help with childcare and ease their busy schedules.

You might recognize Sophia Lillis from her roles in popular projects like It, It: Chapter Two, Sharp Objects, Asteroid City, and The Chair Company.

Abby Elliott as Lia Irvine

Lia is Peter’s sister and arrives quickly when Milo goes missing, offering support to Peter and Marissa. She’s holding back some secrets about her life, and old memories are still troubling her.

I’m such a fan of Abby Elliott! I think I first noticed her in The Bear, but then I realized she was also on Saturday Night Live – she’s hilarious! I also remember her from Odd Mom Out, and I think she did some voice work in Home: Adventures with Tip & Oh and Star vs. the Forces of Evil, which my kids loved. She’s been in a lot of great stuff!

Daniel Monks as Brian Irvine

Brian is Peter’s youngest brother. He was seriously injured in an accident when he was young, leaving him with a spinal cord injury and difficulty moving around. He lives with Peter and Marissa and is helping them deal with Milo’s disappearance.

Where have I seen Daniel Monks? Monks has starred in Pulse, Kaos, Dead Hot and Ricky Stanicky.

Jay Ellis as Colin Dobbs

Colin is a close friend and business partner of Marissa’s. He’s there to support Marissa and Peter after Milo goes missing, but he’s keeping something to himself.

You probably recognize Jay Ellis from his roles in popular shows and movies like Insecure, The Game, Escape Room, and Top Gun: Maverick. He’s also appeared in Running Point and Mrs. America.

The new series, All Her Fault, will launch on Sky and NOW in the UK on November 7th. The first four episodes will be available immediately, with new episodes released each week, culminating in the final episode on November 21st.

Don’t miss “Add All Her Fault”! Watch it on the TopMob: What to Watch app. Download the app today for daily TV suggestions, exclusive content, and more.

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2025-11-07 12:37