Afterleaving the offices of Waystar RoyCo behindlast year,Sarah Snookwill soon be facing a parent’s worst nightmare. PerDeadline, theSuccessionEmmy winner has found her next big role on television withAll Her Fault, a thriller set at Peacock about a mother searching for her lost son amid his mysterious disappearance. Adapted from the bestselling novel of the same name byAndrea Mara, the series hails fromMegan Gallagher, who previously created the BBC crime thriller series,Wolf. Snook will serve as an executive producer alongside Gallagher.
All Her Faultwill put Snook into the shoes of Marissa Irvine on a seemingly normal day as she goes to pick up her young son Milo from his first playdate with another boy he’d made friends with at school. Upon arriving at 14 Arthur Avenue, however, she’s shocked to be greeted at the door by a woman who’s not the other boy’s mother nor a nanny watching over the kids. Suddenly realizing she has no idea where her son is, she’s pulled down a rabbit hole that takes her through the deep secrets of her community. An unexpected suspect is eventually named, butthe streets of Dublin are left buzzing over the four women most connected to the case, any of whom could be responsible for taking Milo.

Gallagher has plenty of experience withinthe thriller genre, also previously penning a pair of episodes for Apple TV+‘sSuspicionand creating the Viaplay original seriesSeizure. Behind the camera for the series’s first episode, among others, is3 Body ProblemandThe Plot Against AmericadirectorMinkie Spiro. Alongside Gallagher and Snook, she’s also set as an executive producer alongsideNigel Marchant,Gareth Neame, andJoanna Strevensfor Carnival Films,Jennifer Gabler Rawlings, andChristine A. Sacani.Terry Gouldis also set as a producer while the novel’s author, Mara, is an associate producer.
Snook is most notably coming off her acclaimed role as Shiv Roy on the Emmy juggernautSuccession, whichcame to an explosive end with the Season 4 finalelast March. Following previous strong turns inBlack MirrorandSoulmates, joining the Roy family made her a favorite with an Emmy win, a pair of nominations, and two Golden Globes among other honors. In the past year, however, she’s taken on an array of intriguing film and television roles, including inThe Beanie BubbleoppositeZach Galifianakis, the horror mystery filmRun Rabbit Run, and the animated comedy seriesKoala Man. Of late, she took her skills to the stage with the award-winningThe Picture of Dorian Gray, which scored her an Olivier Award for Best Actress in a Play.

Stay tuned here at Collider for more onAll Her Faultas the cast fills out around Snook. In the meantime,check out our guideto some of the best new shows and films coming to Peacock this month.
Succession
The Roy family is known for controlling the biggest media and entertainment company in the world. However, their world changes when their father steps down from the company.
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