The iconic role of the Master Chief in Showtime's upcoming Halo TV show will be played by Pablo Schreiber, and the Orange is the New Black actor is putting in some serious work to physically prepare. On Instagram, he's shared new photos of the workouts he's been going through in order to get in adequate shape to play the super soldier.

　　It appears Schreiber has hired Hollywood personal trainer Eddie Raburn to help get in shape for the big-time video game TV show. He's going to great lengths to look the part. In these photos, you can see Schreiber doing dune sprints in Oregon. He is clearly dedicated, as he did this workout during some downtime on a trip with his kids. #MakingMasterchief was his hashtag.

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　　Now Playing: Halo Infinite E3 Trailer Has No Gameplay But Is All In On Story

　　View this post on Instagram

　　Sprints in the Oregon Dunes with @eddie_raburn. Trying to stay active and productive on a long road trip with kids but not lose sight of our goals... #MakingMasterchief

　　A post shared by Pablo Schreiber (@officialpabloschreiber) on Jul 5, 2019 at 11:58am PDT

　　Raburn also shared photos, posting images of Schreiber doing push-ups and running with ropes. Raburn says Schreiber has put in "endless work" to get in shape for Halo.

　　View this post on Instagram

　　Thank you @jvert & @jwt707 at @21gramsgym in Arcata, California for opening your doors and letting us train on our way up the coast. For years I’ve wanted to come up and train thank you for your time. _ The Journey Continues as @officialpabloschreiber is in his mass gain portion of training for his lead role as #MasterChief in @showtime new tv series based of the popular video @halo _ #BecomingMasterChief #Halo #Showtime _ #CalCoastSC #21gramsGym _ #Arcata #Humboldt #California

　　A post shared by Eddie Raburn (@eddie_raburn) on Jul 2, 2019 at 6:11pm PDT

　　View this post on Instagram

　　Bigger, Stronger, faster. _ The Journey continues as Pablo puts in the endless work with #BecomingMasterChief for @showtimes biggest upcoming tv series @halo _ Workload was 100m sprints with Neg splits, gymnastics work, & banded resistances work. _ #CalCoastSC #Showtime #Halo _ #LosAngeles #California

　　A post shared by Eddie Raburn (@eddie_raburn) on Jun 13, 2019 at 6:45pm PDT

　　Schreiber has also been doing cardio, it seems, as he posted a picture of himself posing on a running track in front of a barn that says "Spartans."

　　pic.twitter.com/vwKUAH7wOx

　　— Pablo Schreiber (@schreiber_pablo) July 6, 2019

　　Raburn's fitness and training company, Cal Coast, has worked with training or nutrition programs for actors, stunt doubles, or stunt teams for movies including Spider-Man: Homecoming, First Man, Blade Runner 2049, Wonder Woman 1984, Suicide Squad, and Triple Frontier. They also worked on Den of Thieves, which Schreiber starred in.

　　It's interesting that Schreiber is doing so much work to get in shape when presumably little or none of it will be seen if he's always in his suit. Apart from a very brief tease at the end of Halo 4, the Halo video games have never shown Master Chief's face. He's always in his space marine gear. Whether or not that will change with the TV show is unknown.

　　The Halo TV show is set for a 10-episode Season 1, which will premiere at some point on Showtime, whose parent company, CBS, also owns GameSpot. Halo transmedia boss Kiki Wolfkill recently discussed how Microsoft thinks the show can be like Game of Thrones--just without the incest.

　　The Halo TV show is being directed by Otto Bathurst, who directed the shocking Black Mirror series premiere. The show is scheduled to begin production later in 2019, and Showtime has ordered 10 hour-long episodes of Halo for its first season.

　　As for the Halo video game series, Halo Infinite was finally shown off through a story trailer at E3 2019.