All Her Fault is an upcoming mystery drama miniseries for Peacock starring Sarah Snook. Marissa Irvine arrives at 14 Arthur Avenue to pick up her son Milo from a play date, but when she gets there she can't find him. Jake Lacy, Sophia Lillis, and Michael Peña joined the main cast in August 2024. Dakota Fanning, Abby Elliott, Jay Ellis and Thomas Cocquerel were cast as series regulars.