02/20/2013 02:28 pm ET

'The Good Wife': 'Runnin' With The Devil' Features Audra McDonald, Jess Weixler

There's a new investigator in town on "The Good Wife."

The March 10 episode, "Runnin' with the Devil," introduces viewers to Robyn (Jess Weixler), an investigator Lockhart/Gardner hires and asks Kalinda (Archie Panjabi) to train.

The episode also features Wallace Shawn as Lemond Bishop's other attorney and Audra McDonald as Liz, Alicia's (Julianna Margulies) former classmate and current legal foe.

Here's CBS's official episode description:

Jailed drug dealer Lemond Bishop requests that Alicia work with lawyer Charles Lester, but as witnesses against Bishop begin recanting their testimony, she begins to suspect that Lester’s meek appearance isn’t all it seems. Also, Kalinda is forced to train a new investigator and Cary makes a risky move, on THE GOOD WIFE, Sunday, March 10 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Audra McDonald guest stars as Alicia’s law school classmate and Wallace Shawn guest stars as Lemond Bishop’s other lawyer.

Click through the slideshow below for pictures from "Runnin' with the Devil."

"The Good Wife" airs Sundays, 9 p.m. on CBS.

The Good Wife