Whoopi Goldberg will play a foster mother gone bad — a potentially recurring role — in a May episode of NBC's Law & Order: Criminal Intent. "Whoopi never gets to be the bad guy. In the world of [our show], she'll be the baddest," promises executive producer Fred Berner.... Bernadette Peters will play Karen's sister and Josh Lucas will give Jack a shoulder to cry on in the May 11, penultimate episode of Will & Grace.