Jaclyn Smith and Ann-Margret

Two-time Academy Award nominee Ann-Margret and former Charlie's Angels star Jaclyn Smith have signed on to guest-star in an upcoming episode of Law & Order: SVU.

Executive producer Neal Baer tells TVGuide.com that the actress will play "a star of commercials that were made in the '70s" and will be joined in the episode by Jaclyn Smith, who Baer says will play "a retired cop who works with Benson and Stabler to solve an old crime.

Baer calls it "Charlie's Angels thirty years later."

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Set to air March 31st, the episode also stars Morgan Fairchild, Susan Anton, William Atherton and Renee Taylor and will be directed by actress Helen Shaver. "It's this bevy of great actresses," Baer says.

Currently in its 11th season, SVU has plenty of high-profile guest-stars on the horizon. Sharon Stone will appear in four upcoming episodes as Assistant District Attorney Jo Marlowe, and comedian Kathy Griffin and actress Mischa Barton will be in the back-to-back new episodes "P.C." and "Savior" to air March 3rd.