AMID THE CHAOS AND EXHAUSTION OF WORKING 36 CONSECUTIVE HOURS IN CODE BLACK, THE DOCTORS MUST DEAL WITH THE DISTRAUGHT MOTHER OF TWO SONS WHO ARE IN A DEVASTATING CAR ACCIDENT, ON "CODE BLACK," WEDNESDAY, OCT. 14

"Pre-Existing Conditions" - Amid the chaos and exhaustion of working 36 consecutive hours in Code Black, the doctors must deal with Margaret O'Brien (Gail O'Grady)
, the distraught mother of two sons who are in a devastating car accident. Also, Mario bullies Angus into performing an unnecessary operation but lets Angus take the blame when Leanne finds out, on CODE BLACK, Wednesday, Oct. 14 (10:00-11:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

Marcia Gay Harden (Dr. Leanne Rorish)
Bonnie Somerville (Christa Lorenson)
Raza Jaffrey (Dr. Neal Hudson)
Luis Guzm�n (Jesse Sallander)
Melanie Chandra (Malaya Pineda)
Harry Ford (Angus Leighton)
Benjamin Hollingsworth (Mario Savetti)
William Allen Young (Dr. Rollie Guthrie)

GUEST CAST:

Kevin Dunn (Dr. Taylor)
JF Davis (Stanley)
Aaron Christian Howles (Kevin O'Brien)
Gail O'Grady (Margaret O'Brien)
Matthew John Armstrong (Dylan Michael Ross)
Ellia English (Isabel Mendez)
Angela Relucio (Risa Park)
Emily Nelson (Hannah)
Amy Tolsky (Mrs. Curtis)
Shanti Lowry (Tiffany)
Dan Martin (Donald)
Lonny Aufrie (Zoe Bower)
Aris Mendoza (EMT)
Grace Van Dien (Friend One)
Megan Neutze (Friend Two)
Kelly Michaels (Medic)
Jelly Howie (Eva)
Diego Rodriguez (TJ)
Andres Perez-Molina (Medic #2)

WRITTEN BY: David Marshall Grant

DIRECTED BY: Lee Rose