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Patrick Schwarzenegger Joins HBO Max's True-Crime Series 'The Staircase'

Patrick Schwarzenegger is taking on a new project.

The 27-year-old Moxie and Midnight Sun has signed on to join the star-studded cast of The Staircase at HBO Max, Deadline reports.

The upcoming series is based on the docu-series of the same name and follows the real case of Michael Peterson, who was accused of murdering his wife Kathleen in 2001.

Colin Firth is set to play Michael Peterson while Toni Collette will star as Kathleen. It was announced earlier this month that Sophie Turner had also joined the show and would be playing Margaret Ratliff, one of Michael Peterson’s adopted daughters.

The cast also includes Juliette Binoche, Rosemarie Dewitt, and Parker Posey.

Patrick was spotted out and about with his longtime girlfriend Abby Campion a few months back. Check out the photos here!

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Sophie Turner to Star in HBO Max's Highly Anticipated Series 'The Staircase'

Sophie Turner is the latest star to join the cast of the upcoming HBO Max limited series The Staircase.

The upcoming series is based on the docu-series of the same name and falls the real cast of Michael Peterson, who was accused of murdering his wife Kathleen in 2001.

Colin Firth will be playing Peterson while Toni Collette will star as Kathleen.

Variety reports, “He claimed she died after falling down the stairs at their home, but police suspected he bludgeoned her to death and staged the scene to look like an accident.”

Click inside to find out who Sophie Turner will be playing… More Here! »

Toni Collette Cast Opposite Colin Firth in HBO Max's Crime Drama 'The Staircase'

Toni Collette is taking on an exciting new project.

The 48-year-old actress is joining the cast of HBO Max’s upcoming limited drama series The Staircase, per Deadline.

The eight-episode series focuses on the life of Michael Peterson, played by Colin Firth, and his expansive North Carolina family as well as the mysterious death of his wife, Kathleen.

Toni will play Kathleen in the show, which is based on the numerous books and reports about the case.

Michael Peterson was convicted of the murder of his wife in 2001. He had initially claimed that Kathleen died from falling down the stairs after consuming alcohol and Valium, but an autopsy found that she died from multiple injuries, including blunt force trauma to the back of her head. His charge was eventually reduced to manslaughter in 2017 and he was released from prison.

The Staircase is partially based on the true-crime docuseries of the same name which premiered in 2004 and was released on Netflix as a 13-episode series in 2018.

Check out the trailer for Toni’s latest movie, Stowaway.