The CSI: Crime Scene Investigation star has joined the cast of WGN America’s Manhattan as a series regular, the network announced Thursday.


The actor, who departed the CBS procedural during season nine, will play Col. Emmett Darrow, the enigmatic new ranking military officer at Los Alamos. A deeply religious and patriotic man, Darrow feels called by God to usher in the atomic future, and to spread American values across the globe.

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Manhattan marks Petersen’s return to the small screen following his 10-season Emmy- and Golden Globe-nominated run as Gil Grissom on CSI.


Produced by Lionsgate, Skydance and Tribune Studios, the second season of Manhattan — starring John Benjamin Hickey and Olivia Williams — begins production in April for a 2015 debut.

Aside from CSI, Petersen’s TV roles have been limited. In 2012, he plotted a return to TV with Hurt People, a drama produced by GK-TV that did not move forward at Cinemax.

Petersen, who remains an exec producer on CSI, is repped by CAA and Ziffren Brittenham.

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