The Entourage actor will appear opposite A Gifted Man co-star Rachelle Lefevre, according to Deadline.
Lefevre will play private investigator Juliet Applebaum in the pilot, which is based on the Mommy Track Mysteries books by Ayelet Waldman.
Coiro has now been cast as her husband Peter, a successful comic book artist. The actor's past credits include episodes of Burn Notice, Hawaii Five-0 and a recurring role in the seventh season of 24.
Both Lefevre and Coiro will be forced to drop out of Applebaum if CBS picks up A Gifted Man for a second season.
Author Waldman co-wrote the project with Jennifer Levin (Brothers & Sisters) and Sherri Cooper (Unforgettable).
The trio will executive produce alongside showrunner Jeff Rake, Michael Barnathan and Harry Potter director Chris Columbus, who will helm the Applebaum pilot.
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