'Law & Order True Crime' Adds 'Crazy Ex-Girlfriend' Actor in Multi-Episode Arc (Exclusive)

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Law & Order True Crime: The Menendez Murders is adding another member to the prosecution.

Robin Thomas (Crazy Ex-Girlfriend, Zoo) has been tapped to play DDA David Conn in NBC's upcoming anthology, The Hollywood Reporter has learned.

The eight-episode first installment of the anthology is described as a "gripping in-depth dramatization" of the famed murder case that took America by storm in the early 1990s. When brothers Lyle and Erik Menendez were tried on national TV for brutally killing their parents in Beverly Hills on Aug. 20, 1989, their story became a nationwide obsession. Law & Order True Crime: The Menendez Murders dives into the players, the crime and the media circus, detailing the day-to-day battles of the trial and unveiling the shocking truth of what really went down behind the scenes.

Thomas will appear in the final two episodes of the first season as a quietly ferocious lawyer who is assigned to prosecute the Menendez brothers during their second trial. (Their first trial famously ended with a hung jury.)

Edie Falco leads a cast that also includes Josh Charles, Heather Graham, and Gus Halper and Miles Gaston Villanueva as the Menendez brothers. 

Law & Order vet Rene Balcer serves as showrunner, while Lesli Linka Glatter (Homeland) will direct several episodes. The two will executive produce with Dick Wolf, Peter Jankowski and Arthur W. Forney. Universal Television will produce in association with Wolf Films.

Thomas, whose other credits include Pacific Rim, is repped by BRS/Gage Talent Agency and attorney Scott Schwimer

Law & Order True Crime: The Menendez Murders premieres Tuesday, Sept. 26, at 10 p.m. on NBC.