The actor - who appeared in the Williamson-written Scream 4 last year - joins the previously-cast Kevin Bacon and James Purefoy, according to Deadline.
The untitled pilot will follow Ryan Hardy (Bacon), an ex-FBI agent lured back into active service to hunt down Joe Carroll (Purefoy), a serial killer who leads a murderous cult.
Tortorella - who has also starred in ABC Family's Make It or Break It - will play Will Wilson, a friend of one of Carroll's victims.
X-Men star Shawn Ashmore, Twilight's Valorie Curry and Alcatraz actress Jeananne Goossen will also appear in the Williamson pilot.
The Vampire Diaries director Marcos Siega will helm the project, which will be produced by Warner Bros TV and Williamson's Outerbanks Entertainment.
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