Molina, according to the Associated Press, will play Deputy District Attorney Morales. The cast will also feature Skeet Ulrich as a lead detective.
Although a premiere date has yet to be announced, creator-producer Dick Wolf said that the series will air Wednesday evenings on NBC at 10 PM ET. In a statement Wolf said, "I am thrilled that Fred is 'LOLA's' deputy D.A."
After a 20-year run, the original "Law & Order" ended its run last season.
Molina has also been seen on Broadway in Art and Fiddler on the Roof. His numerous screen credits include "Raiders of the Lost Ark," "Spider-Man 2" and "The Da Vinci Code."