Sarah Snook Marissa Irvine Actor, Executive Producer Dakota Fanning Jenny Actor Jake Lacy Peter Actor Sophia Lillis Carrie Actor Abby Elliott Lia Actor Rowan Witt Brendan Actor Sachin Joab Alex Wayans Actor Michael Peña Detective McConville Actor Johnny Carr Actor Megan Gallagher Executive Producer Andrea Mara Executive Producer Nigel Marchant Executive Producer Gareth Neame Executive Producer Minkie Spiro Director Joanna Strevens Executive Producer Jennifer Gabler Rawlings Executive Producer Christine A. Sacani Executive Producer Kate Dennis Director