Heather Graham Will Star in 'Law & Order True Crime: The Menendez Murders'

Heather Graham has signed on to join the cast of Law & Order True Crime: The Menendez Murders.

The 47-year-old Hangover actress will play Judalon Smyth, “a sexy, emotionally fragile woman who is having an affair with Dr. Oziel,” Variety reports.

PHOTOS: Check out the latest pics of Heather Graham

Elizabeth Reaser and Larry Cedar will also be joining the cast.

The eight-episode anthology series will focuses on the famous murder trial of brothers Lyle and Erik Menendez, who were accused of brutally killing their parents in Beverly Hills in 1989.

Don’t miss Law & Order True Crime: The Menendez Murders when it airs Tuesdays at 10 p.m. on NBC starting on September 26.