All Her Fault: Sarah Snook on Playing a Successful Mom's Worst Nightmare

Emmy-winning actor Sarah Snook, known for her role in Succession, stars in Peacock’s psychological thriller All Her Fault, based on Andrea Mara’s best-selling novel. The eight-episode series premiered on November 6, 2025, and tells the story of Marissa, a self-made wealth manager whose world collapses when her son, Milo, goes missing during a supposed playdate.

The Plot

At the beginning, Marissa and her husband, Peter (played by Jake Lacy, known for Apples Never Fall), believe their son is safe with a classmate. But when Marissa arrives to collect Milo, she realizes he has vanished. The show quickly unravels into a tense and emotional exploration of parental fear and desperation.

Sarah Snook on the Role

As both the lead actor and an executive producer, Snook spoke at a recent press conference about the emotional challenge of embodying a parent facing unimaginable trauma.

“It is high drama, but the key was finding the truth in it. What does it really mean for a person to lose their child? That was the hardest thing — constantly digging for the most truthful version of that experience.”

“During the first read-through, I wrote on the first page: ‘Must find different ways to cry.’ Because the story demanded so many layers of grief and emotion, I had to find new ways to express them.”

About the Performance

Snook’s portrayal of Marissa combines raw emotion with restraint, turning what could have been pure melodrama into a deeply human story about loss, control, and the fear of not knowing the truth.

Author’s Note: Sarah Snook delivers a haunting, grounded performance in a series that tests the limits of maternal strength and emotional endurance.

Showbiz Junkies — 2025-11-07