Marcia Gay Harden on CBS' 'Code Black': 'It's real, it's raw'

The CBS drama "Code Black" takes place in the nation's busiest, most notorious emergency room, where the staggering influx of patients can outweigh the limited resources available to the doctors and nurses whose job is to treat them all, creating a condition known as Code Black. The show premieres on Sept. 30. (CBS)Marcia Gay Harden said the role of Leanne, from CBS' new medical drama "Code Black," was "so good" that she "could not say no."

"I was a little nervous about it because I'm a single mother of three and I know what life is like on set," the actress, who has worked on shows such as "Law & Order: SVU," and "Trophy Wife," said Monday at the Television Critics Assn. summer media tour…