← Previous Next → 15x20 Shifting Equilibrium First Aired: Mar. 19, 2009 on NBC Summary: It's Neela's last day in the ER, but everyone seems to have forgotten that she is leaving. She proves she is ready to be an attending by arguing with Dr. Dubenko over two surgical cases. Meanwhile, Brenner reflects on his past.

Main Characters in this Episode

• Dr. Neela …
• Dr. Tony G…
• Nurse Sama…
• Dr. Archie…
• Dr. Ray Ba…
• Dr. Lucien…

• Dr. Gregor…
• Dr. Michae…

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Guest Stars Dr. Simon Brenner played by David Lyons (IX) Dr. Cate Banfield played by Angela Bassett Dr. Abby Lockhart played by Maura Tierney Nurse Chuny Marquez played by Laura Cerón Darrion Walters played by M.C. Gainey Jay played by Diego Klattenhoff Claudia Diaz played by Justina Machado Dr. Paul Grady played by Gil McKinney Dr. Andrew Wade played by Julian Morris Mrs. Walters played by Amy Morton Frank Martin played by Troy Evans Nurse Haleh Adams played by Yvette Freeman Matthew Graham played by Christopher B. Duncan Lily played by Shannon McLemore Cynthia played by Sheilynn Wactor Ed McDow played by Michael Gambino Bartender played by Jerry Kernion Mira played by Abigail Kochunas Bruneau played by Shelby Leverington Paramedic Bardelli played by Louie Liberti Anesthesiologist played by Lauren Lovett Surgeon played by Indra Patel Alison played by Laura Simms Office Visitor played by Er Joe Kovac played by Aidan Gonzales Joe Kovac played by Andrew Gonzales (III) Chris played by Andy Ostroff Tony played by Anthony Jennings (II) Hospital Volunteer played by Danielle Catherine Traveler #1 played by Roberto 'Sanz' Sanchez Rehab Patient played by Jack Mahrt Visitor at Reception Desk played by Steven James Price More