Menzel will guest star on the May 11 episode of the UPN series, which airs Wednesday evenings at 9 PM ET. The upcoming episode, entitled "Sacrificial Lambs," will feature Menzel as a trial lawyer. According to TV Guide, the episode is described thusly: "Sarah's mother, Melanie, returns and wants to revisit the issue of custody, while Jessie and Nicolette's client tests their consciences." The cast also includes Jon Seda, Patrick Breen, Michael Michele, Meagan Good, Christina Hendricks and Kate Levering.

Idina Menzel won a Tony Award for Leading Actress in a Musical for her work as Elphaba in Wicked. She created the role of Maureen in the original Broadway company of Rent, and her other theatrical credits include the City Center Encores! production of Hair, the Manhattan Theatre Club The Wild Party and the benefit Funny Girl concert. Menzel also recently completed filming the new motion picture "Ask the Dust."

Taye Diggs has appeared on Broadway in Wicked, Carousel, Rent and Chicago. He received an Outer Critics Circle Award nomination for his performance in Off-Broadway's The Wild Party, and his film credits include "How Stella Got Her Groove Back," "The Best Man," "The Way of the Gun," "House on a Haunted Hill," "The Wood," "Go," "Brown Sugar" and "Chicago."

In "Kevin Hill" star Diggs plays entertainment lawyer Kevin Hill, who suddenly finds himself charged with raising his cousin's ten-month-old daughter. For more information visit www.upn.com.