All Her Fault , an upcoming thriller series on Peacock, has added Dakota Fanning and Abby Elliot to the cast. According to Deadline , Fanning will play Jenny, while Elliott will play Lia. Fanning and Elliott join a cast that also includes Sarah Snook as Marissa Irvine, Jake Lacy as Peter, Sophia Lillis as Carrie and Michael Peña as Detective McConville.

Fanning is coming off starring roles in Ishana Night Shyamalan's directorial debut The Watchers and Ripley, Netflix's adaptation of Patricia Highsmith's 1955 crime novel The Talented Mr. Ripley. Fanning was nominated for an Emmy for her work in Ripley. She will next be seen in The Perfect Couple, a Netflix murder mystery set for release in September.

Elliot is best known for her work as Natalie "Sugar" Berzatto on FX's The Bear and as a cast member of Saturday Night Live from 2008 to 2012. Elliot's appearances include Indebted, Odd Mom Out, Search Party, Better Off Single and Cheaper by the Dozen.

"Marissa Irvine (Snook) arrives at 14 Arthur Avenue in Chicago, expecting to pick up her young son, Milo, from his first play date with a boy at his new school," the official logline reads. "But the woman who answers the door is not a mother she recognizes. She's not the nanny. She doesn't have Milo. And so begins every parent's worst nightmare."