All Her Fault Cast and Character Guide
All Her Fault has become a sensation on Peacock since its release on November 6, 2025. This gripping mystery-drama, adapted from Andrea Mara's novel, plunges viewers into a tense story about Marissa Irvine, whose son Milo disappears after a routine playdate.
Plot Overview
The series follows the Irvine family—Marissa and Peter—as their lives intertwine with others involved in Milo’s disappearance. Secrets come to light, relationships are tested, and harsh truths emerge about those entrusted with children’s care. Detective Alcaras investigates the complicated lives of the Irvines, school mothers, and nannies, revealing how ordinary people confront extraordinary circumstances.
Main Characters and Actors
- Marissa Irvine: Portrayed by Emmy-winning actress Sarah Snook, Marissa is a corporate mother living in Chicago, terrified by her son’s sudden disappearance.
- Peter Irvine: Marissa’s spouse, whose perspective and actions are central to the unfolding mystery.
- Detective Alcaras: The police investigator probing the interconnected lives surrounding Milo’s case.
- Other characters: Include school mothers and nannies who play key roles in the narrative.
About Sarah Snook
Sarah Snook, an acclaimed Australian actress from Adelaide, delivers a compelling performance as Marissa Irvine. Known for her role as Shiv Roy in Succession, Snook’s work has earned her an Emmy award. Her filmography includes notable titles such as Predestination (2014), Pieces of a Woman (2020), and Run Rabbit Run (2021).
"The actors bring this tense scenario to life with impressive talent and subtlety, making every twist in All Her Fault engrossing and unpredictable."
Author's summary: All Her Fault immerses viewers in a gripping mystery, highlighting powerful performances and the fragile trust of parents caught in an alarming disappearance.