“Shameless” alum Cameron Monaghan is set to star in an upcoming “Bosch” prequel.

Monaghan, who rose to prominence as Ian Gallagher on “Shameless,” will play the titular character in “Bosch: Start of Watch.” The new series will center on a 26-year-old version of Harry Bosch, the detective created by crime fiction writer Michael Connelly.

“Unbelievably excited for this new chapter of my life and career. This is a great script and can’t wait to immerse myself in this project,” Monaghan wrote via Instagram to celebrate his casting.

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Omari Hardwick will play Bosch’s training officer, police veteran Eli Bridges. Set in 1991 Los Angeles, “Bosch: Start of Watch” follows the young detective as he is “drawn into a high-profile heist

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