THE FBI TEAM SEARCHES FOR AN EX-CON WHO GOES MISSING AFTER VISITING A FRIEND IN PRISON, ON "WITHOUT A TRACE," THURSDAY, DEC. 6

James Marsters ("Buffy the Vampire Slayer," "Angel") Returns as Grant Mars, a Detective Helping Vivian with the Human Trafficking Case

Henry Thomas ("Gangs of New York," "E.T.: The Extra-Terrestrial") Guest Stars in a Multi-Episode Arc as Franklin Romar, a Suspect who is Arrested by Vivian during a Raid on a Brothel

"One Wrong Move" - When an ex-con who had only been released from prison a month earlier goes missing, the team questions whether her past mistakes, including embezzling money from her former clients, may have come back to haunt her, on WITHOUT A TRACE, Thursday Dec. 6 (10:00-11:00 PM ET/PT) on the CBS Television Network.

SERIES REGULARS:

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

GUEST CAST:

Lindsay Bynum: Catherine Dent
Detective Grant Mars: James Marsters
Prison Clerk: Treisa Gary
Little Boy: Griffin Churchill
ND Agent: Stacy Kesten
Jake Bynum: Jeffrey Stubblefield
Natalie Bynum: Jamie Denbo
Mason Bynum: Kevin G. Schmidt
Ryan Bynum: Wyatt Smith
Carolyn Nisbit: Lauri Johnson
Richard Ludlow: Larry Poindexter
Mel Heinz: Mel Rodriguez
Angela Richter: Vanessa Britting
Woman (Madam): Julie Dolan
Franklin Romar: Henry Thomas
Tough Guy: Gary Kasper
Girl Eliza: Lauren Dean
Marie Bassineaux: Mashari Laila Bain

WRITTEN BY: Diego Gutierrez and Gwendolyn M. Parker

DIRECTED BY: Jeff Thomas

RATING: To Be Announced