The role brings Edwards back to NBC, where he starred on 'ER.'

Anthony Edwards is returning to NBC.

The ER alum has joined Law and Order True Crime: The Menendez Murders, The Hollywood Reporter has confirmed.

The eight-episode first installment of the anthology series is described as a "gripping in-depth dramatization" of the famed murder case that took America by storm in the early 1990s. When the Menendez brothers were tried on national TV for brutally killing their parents in Beverly Hills, their story became a national 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.

Edwards will play Judge Stanley Weisberg, who presided over the brothers' murder trial and had a contentious relationship with their defense attorney, Leslie Abramson, played in the series by Edie Falco.

The cast also includes Gus Halper and Miles Gaston Villanueva as Eric and Lyle Menendez.

Ordered to series in July 2016, Law & Order True Crime follows in the vein of true-crime scripted dramas like The People v. O.J. Simpson: American Crime Story. Law & Order vet Rene Balcer serves as showrunner, while Lesli Linka Glatter (Homeland) will direct several episodes.

The two will executive produce with Wolf, Peter Jankowski and Arthur W. Forney. Universal Television will produce in association with Wolf Films.

The role reunites Edwards and Wolf a year after he guest-starred on Law and Order: SVU opposite former ER love interest Mariska Hargitay. In addition to his eight-year run on ER, Edwards' other credits include a recent arc on Billions and Northern Exposure.

Although originally set to premiere in ER's old time slot, Thursdays at 10 p.m., NBC announced earlier this week that Law and Order True Crime will now air Tuesdays at 10 p.m.