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The Staircase - Olivia DeJonge Joins HBO Max’s True-Crime Series

Olivia DeJonge (The Society) has joined the cast of The Staircase, HBO Max’s limited series drama adaptation based on the true-crime docuseries. She joins previously announced cast members Colin Firth, Toni Collette, Rosemarie DeWitt, Juliette Binoche, Parker Posey, Sophie Turner, and Dane DeHaan.

The eight-episode series from Christine director Antonio Campos and American Crime Story writer Maggie Cohn explores the life of Michael Peterson (Firth), his sprawling North Carolina family and the suspicious death of his wife, Kathleen (Collette).

DeJonge will play Caitlin Atwater, Kathleen Peterson’s biological daughter.