(NOTE TO EDITORS: The following episode of WITHOUT A TRACE has been substituted for the one previously scheduled for April 20.)

THE TEAM SEARCHES FOR A WEALTHY YOUNG BLUE BLOOD WHO WENT MISSING FROM THE INNER CITY SHELTER WHERE HE HAD WAS DOING COMMUNITY SERVICE AS PART OF HIS SENTENCE FOR DRUG POSSESSION, ON "WITHOUT A TRACE," THURSDAY, APRIL 20

Gina Torres ("Alias," "24") and Perry King ("Melrose Place") Guest Star

"More Than This" -- The team searches for a young blue blood who went missing from the inner city shelter for indigent women where he volunteered as part of his sentence for drug possession, on WITHOUT A TRACE, Thursday, April 20 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Timothy Busfield directed the episode written by Scott Williams, both of whom are series' co-executive producers.

Gina Torres ("Alias," "24") and Perry King ("Melrose Place") guest star as the missing young man's shelter supervisor and his father, respectively.

As the agents investigate whether Breck Mulligan was victimized by one of the shelter's resident's abusive husbands, pimps or dealers, they also ponder if Breck, a repeat drug offender, fell back into that dangerous world. Breck's powerful father counters that his reformed son was likely kidnapped in the shelter's dicey neighborhood by someone seeking a hefty ransom. After learning that Breck's father cut him off financially following his arrest, the agents also wonder what Breck did to obtain thousands of dollars from "anonymous donors" to keep the shelter open.

Jack Malone: Anthony LaPaglia
Samantha Spade: Poppy Montgomery
Vivian Johnson: Marianne Jean-Baptiste
Danny Taylor: Enrique Murciano
Martin Fitzgerald: Eric Close
Elena Delgado: Roselyn Sanchez
Breck Mulligan: James Snyder
Heidi Peyton: Monica Keena
Tyra Hughes: Gina Torres
Walter Mulligan: Perry King
Betty Danforth: Belinda Waymouth
Carol Whitney: Susan Diol
Nazar Rahim: Navid Negahban
Todd Kipling: Tom Parker
Felipe: Ivo Nandi
Gail: Jossara Jinaro
Yuppie Guy: Tyler Vogt
Carlos: Enrique Renaldo
Loretta: Tiara McKinney

RATING: To Be Announced