DON AND HIS TEAM TRACK A SERIAL KILLER WHO IS TARGETING SEX OFFENDERS PREYING ON YOUNG GIRLS, ON A REBROADCAST OF "NUMB3RS," FRIDAY, JUNE 20

Apollo 11 Astronaut Buzz Aldrin Guest Stars as Himself

"Killer Chat" - Don and Charlie try to catch a serial killer who is seeking revenge against Internet sexual predators who prey on young girls they meet in chat rooms, on a rebroadcast of NUMB3RS, Friday, June 20 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Chris Hartwill directed the episode from a script written by Don McGill. (Originally broadcast 12/15/06)

Apollo 11 Astronaut Buzz Aldrin guest-stars as himself.

Internet sexual predators become the victims when a serial killer decides to get revenge by murdering them in order to permanently stop their behavior. Meanwhile, Charlie faces one of his more complicated problems: saying goodbye to Larry who is leaving for a six month NASA space shuttle mission.

SERIES REGULARS:

Don Eppes: Rob Morrow
Charlie Eppes: David Krumholtz
Alan Eppes: Judd Hirsch
David Sinclair: Alimi Ballard
Larry Fleinhardt: Peter MacNicol
Megan Reeves: Diane Farr
Amita Ramajuan: Navi Rawat
Colby Granger: Dylan Bruno

GUEST CAST:

Elaine Tillman: Robin Weingert
Matt McCrary: Johnny Simmons
Brendan McCrary: George Newbern
Lawyer: Ptosha Storey
Colleen McCrary: Wendy Gazelle
FBI Tech: Tymberlee Chanel
Mother: Susie Pourfar
Wendell Henderson: Kevin Cristaldi
Victim #5: George Ketsios
John Santos: Ray Torres
Buzz Aldrin: Buzz Aldrin

RATING: TVPG-DV