Patrick Schwarzenegger to Join Brother-in-Law Chris Pratt in New Amazon Series The Terminal List

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getty images (2) Patrick Schwarzenegger (L); Chris Pratt (R)

Patrick Schwarzenegger will be working with brother-in-law Chris Pratt in the upcoming Amazon Studios original series, The Terminal List.

The 27-year-old actor has been cast in a recurring role on the thriller series based on Jack Carr's bestselling novel of the same name, PEOPLE can confirm.

Schwarzenegger will play Special Warfare Operator 2nd Class Donny Mitchell, a Navy SEAL who shares the same platoon as Pratt's character.

Fresh out of training, Donny is the team's youngest member and has only seen the brotherhood of the SEALs in times of strength, not yet in times of suffering. As the platoon's point man, he is also the first to lead the group into unsecured territory.

Neilson Barnard/Getty Patrick Schwarzenegger

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Also starring Constance Wu, Riley Keough, Taylor Kitsch and Jeanne Tripplehorn, The Terminal List follow James Reece (Pratt) after his entire platoon of Navy SEALs is ambushed during a high-stakes covert mission. Reece returns home to his family with conflicting memories of the event and questions about his culpability. However, as new evidence comes to light, Reece discovers dark forces working against him, endangering not only his life but the lives of those he loves.

Pratt, 41, recently gave fans a behind-the-scenes glimpse of the show when he recorded a series of videos of himself "going crazy" while on set.

In clips shared on his Instagram Stories, the Guardians of the Galaxy star was seen dressed in full costume as he showed off random items scattered around his trailer.

"Literally this. Literally," Pratt said in the video, turning his empty coffee mug to the camera.

Chris pratt/ instagram Chris Pratt

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"Show me a cup more greater than this...I'll wait," he added, making goofy facial expressions. "I'm just gonna leave this right here for you."

After playing around with several more items in his trailer, Pratt shared his thoughts on paper straws and joked about why they are beneficial for sea turtles.

"Hey Chris Pratt here just going crazy in my trailer waiting to go to work and I just want to let you know that I care about sea turtles," he said, holding the straw up to the screen. "See this straw — it's made out of paper 'cuz I know that sea turtles are constantly trying to do cocaine."

Pratt has been married to Schwarzenegger's older sister, Katherine Schwarzenegger, since 2019. They share 7-month-old daughter Lyla Maria.

Deadline was the first to report Schwarzenegger's casting news.