The 48-year-old actor will star alongside Billy Bob Thornton in the next installment of the Amazon original show, reported Deadline.
Chestnut will portray Chief Deputy District Attorney Hakeem Rashad, who was on the losing side of Billy McBride's (played by Thornton) last criminal case and holds a grudge against him.
The next spell of the series created by David E Kelley and Jonathan Shapiro premieres next year.
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