EXCLUSIVE: William Jackson Harper (The Good Place, The Morning Show) has joined the cast of FX‘s limited series Cry Wolf. The show hails from Sarah Treem (The Affair, In Treatment) and is inspired by the Danish series Ulven Kommer (Cry Wolf), created by Maja Jul Larsen.

Harper joins the previously announced cast of Olivia Colman, Brie Larson, Shawn Hatosy, Alyvia Alyn Lind, and Jack Greig.

FX’s Cry Wolf is a psychological family thriller following a social worker, Kath (Colman), and a mother, April (Larson), thrust into crisis when the mother’s teenage daughter, Mia (Lind), alleges abuse, pushing both women to their limits as they navigate an impossible situation.

Hatosy plays April’s husband and Mia’s stepfather, who is at the center of the girl’s abuse allegations. Greig plays April’s son.

We understand Harper will play Arthur, Kath’s supervisor at Child Protective Services, who has a good sense of humor. Production will begin imminently, we hear.

Produced by FX Productions, Cry Wolf is executive produced by Treem, who serves as showrunner, Colman via her South of the River Pictures, Melissa Bernstein of Special Interests, and Larson.

Emmy and Tony Nominee Harper was most recently seen starring in the fourth season of the Apple TV+ series The Morning Show. He is perhaps best known for playing Chidi in NBC’s The Good Place, which earned him an Emmy Award nomination for Outstanding Supporting Actor in a Comedy Series. He received a Tony Award nomination for his work on Broadway in Anton Chekhov’s “Uncle Vanya.”

Up next, he will lead the MGM+ series anthology series American Hostage, co-created and executive produced by Shawn Ryan and Eileen Myers. Additional TV credits include Netflix’s A Man In Full, HBO Max’s Love Life, which he also executive produced, and Amazon’s The Underground Railroad. Harper is repped by UTA, AC Management, and Jackoway Austen Tyerman.