DON AND CHARLIE TRACK A SERIAL LETTER BOMBER, ON "NUMB3RS," FRIDAY, APRIL 6, 10:00-11:00 PM ET/PT

"Burn Rate" -- While on the hunt for a serial letter bomber, Don and Charlie disagree over whether a suspected bomber, who had eluded conviction years earlier, is the person responsible for the latest murder, on NUMB3RS, Friday April 6 (10:00-11:00 PM, ET/PT) on the CBS Television Network.

SERIES REGULARS:

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

RECURRING CAST:

Dr. Mildred Finch: Kathy Najimy
Special Agent Liz Warner: Aya Sumika

GUEST CAST:

Jennifer Malloy: Lisa Vidal
Emmett Glaser: Matt Malloy
C.O. Lee Kettrick: William Francis McGuire
Jason Aronow: Kyle Howard
Lawyer: Brian Reddy
Louis Glaser: Bruce Kirby
Male Undergrad: Christopher Dinh
Catherine Walton: Brette Taylor
Captain Hazlett: Dohn Norwood
Bomb Squad Tech: Gene Gabriel

WRITTEN BY: Don McGill

DIRECTED BY: Fred Keller

RATING: To Be Announced