Of the ever-present Law & Order properties, Law & Order: Special Victims Unit is arguably the most popular. And with popularity comes benefits--in this case, guest stars.
The premiere of the drama's 10th season will feature Luke Perry (maybe that's why he's not joining the new 90210?), who is best known as Dylan McKay from the original Beverly Hills, 90210. But that's not all; also appearing on that episode will be Sara Gilbert (Roseanne, The Big Bang Theory) and Julie Bowen (Boston Legal, Lost, and Ed).
According to Entertainment Weekly's Sultan of Scoop Michael Ausiello, Perry and Bowen play a couple accused of abusing their foster child, and Gilbert plays the child's real mother.
The episode is currently scheduled to air on September 23, 2008. For more on Law & Order: Special Victims Unit, check out TV.com's