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The Sinner - Season 4 - Michael Mosley Joins Cast

Michael Mosley (Ozark) is set as a series regular in the upcoming fourth season of USA Network’s crime anthology series The Sinner, starring Bill Pullman.

In Season 4, still reeling from the trauma of a previous case a year ago, the now-retired Harry Ambrose (Pullman) travels to Hanover Island in Northern Maine for a recuperative getaway with his partner, Sonya (Jessica Hecht). When an unexpected tragedy occurs involving the daughter of a prominent island family, Ambrose is recruited to help the investigation, only to be thrown into a mystery of mounting paranoia that will turn this sleepy tourist island, and Ambrose’s life, upside down.

Mosley will play Colin Muldoon, a rugged lobsterman and the devoted son of Meg Muldoon. Colin helped raise his niece, Percy (Alice Kremelberg), and will do anything to protect his family.