By Natalie Abrams
August 28, 2015 at 12:00 PM EDT
Michael Parmelee/CBS; David Livingston/Getty Images
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Jennifer Carpenter will be reunited with her former Dexter co-star Desmond Harrington on her new CBS drama Limitless, EW has learned—and they’ll be treading in very familiar territory.

A continuation of the 2011 Bradley Cooper film, the series follows a man named Brian Finch (Jake McDorman), who discovers the brain-boosting power of NZT and is coerced by the FBI into using his extraordinary cognitive abilities to solve complex cases for them alongside Special Agent Rebecca Harris (Jennifer Carpenter).

Harrington (Gossip Girl, The Astronaut Wives Club) will play Casey Rooks, a Special Agent with FBI SWAT who has a background in martial arts, combat sports and meditation, all of which inform his quiet but formidable presence.

When he is assigned to give Brian basic training, he’s impressed by Brian’s ability to master skills that took Casey years to acquire. Driven by his jealousy, or perhaps another agenda, Casey will keep a close eye on Brian, hoping to uncover his secret. But Casey also has a secret of his own to protect: his covert love affair with Brian’s boss, Agent Rebecca Harris.

WATCH: Jake McDorman is the new Bradley Cooper for TV

Harrington, who also played Carpenter’s love interest Det. Quinn on Dexter, will appear in at least one episode, with the potential to recur.

The news comes on the heels of another Dexter alum heading to CBS. Julie Benz has been tapped to play Daniel Dae Kim’s love interest over a multi-episode arc on Hawaii Five-0. Get the details here.

Limitless debuts Tuesday, Sept. 22 at 10 p.m. ET on CBS.

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