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ER: Chaos Theory

The hospital remains in lockdown while the Center for Disease Control probes a mysterious and deadly illness that leaves Dr. Carter, Abby and others quarantined. While Dr. Lewis initially is left alone and fights to save one patient, Carter and Abby grow resolved to their romantic fate over the next several days as they idle away their time inside the hospital with Drs. Chen and Pratt -- and veteran patient Stan the Can. Meanwhile, newly widowed Dr. Corday struggles to adapt to her new medical practice in her native England while over-shadowed by her attentive parents.


Episode Info


Episode number: 9x1
Production Number: 175151
Airdate: Thursday September 26th, 2002


Alternate Airdates:

FI (MTV3) Feb 06, 2003

  • Currently 8/10
8/10 (1 Vote cast)
Guest Stars
Christopher GroveChristopher Grove
As Dr. Marty Kline
Recurring
Claire JacobsClaire Jacobs
As Mrs. Daniels
Recurring
David Allen BrooksDavid Allen Brooks
As Gunn
Recurring
David HaywardDavid Hayward
As Mother
Recurring
Dee FreemanDee Freeman
As Dr. Lutz
Recurring
Demetrius NavarroDemetrius Navarro
As Morales
Recurring
Diane DelanoDiane Delano
As Stella Willis
Recurring
Dinah LenneyDinah Lenney
As Nurse Shirley
Recurring
Eric PayneEric Payne
As Police Officer (as Eric A. Payne)
Recurring
Harrison PageHarrison Page
As Stan
Recurring
Heidi SwedbergHeidi Swedberg
As Robin Turner
Recurring
John AylwardJohn Aylward
As Dr. Donald Anspaugh
Recurring
John C. McDonnellJohn C. McDonnell
As Rick
Recurring
Judy ParfittJudy Parfitt
As Isabelle Corday
Recurring
Kris MurphyKris Murphy
As Flight Nurse
Recurring
Miranda KwokMiranda Kwok
As Kristen Shoop
Recurring
Nadia ShazanaNadia Shazana
As Jacy
Recurring
Paul FreemanPaul Freeman
As Dr. Charles Corday
Recurring
Paul HippPaul Hipp
As Craig Turner
Recurring
Perry AnzilottiPerry Anzilotti
As Perry, Anesthesiologist
Recurring
Troy EvansTroy Evans
As Frank Martin
Recurring
Alpheus MerchantAlpheus Merchant
As Elderly Man
B.J. WardB.J. Ward
As Unknown
Charles MartinetCharles Martinet
As Eddy (as Charles Martinez)
Deji LaRayDeji LaRay
As Tye Reynolds (as Deji Olasimbo)
James WardJames Ward
As Scientist (as James K. Ward)
Jillie MackJillie Mack
As Mrs. Newberry
Jim PiddockJim Piddock
As Dr. Earl Whitehead
Joe SabatinoJoe Sabatino
As Helicopter Pilot
Kaline CarrKaline Carr
As Dr. Stephanie Rioux
Michael MuhneyMichael Muhney
As Colin Prentice
Michael YamaMichael Yama
As Epidemiologist
Shirley JordanShirley Jordan
As IDC Analyst
Toby RoltToby Rolt
As Senior House Official

Uncredited
Barrett RakestrawBarrett Rakestraw
As Ambulance Driver
Main Cast
Noah WyleNoah Wyle
As Dr. John Carter
Goran VisnjicGoran Visnjic
As Dr. Luka Kovac
Maura TierneyMaura Tierney
As Dr. Abby Lockhart
Mekhi PhiferMekhi Phifer
As Dr. Gregory Pratt
Alex KingstonAlex Kingston
As Dr. Elizabeth Corday
Laura InnesLaura Innes
As Dr. Kerry Weaver
Sherry StringfieldSherry Stringfield
As Dr. Susan Lewis
Ming-NaMing-Na
As Dr. Jing-Mei "Deb" Chen
Sharif AtkinsSharif Atkins
As Dr. Michael Gallant
Paul McCranePaul McCrane
As Dr. Robert Romano
Episode Notes
Mekhi Phifer becomes a series regular with this episode.

Working Title: "Unknown Origin"



Warning: ER season 9 episode 1 guide may contain spoilers
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