Season 12

Season 12
No. of episodes	22
Original network	NBC
Original run	September 27, 2005 – May 18, 2006
DVD release	January 12, 2010
Season chronology
Previous Season 11	Next Season 13

The twelfth season of the medical drama series ER which originally aired from NBC on September 27, 2005 and concluded on May 18, 2006 and spanned 22 episodes. Sherry Stringfield left the show again in this season. This is the last season to have the original ER theme song by James Newton Howard.

Production

Crew

Main article: Season twelve crew

• [[]] -

Cast and characters

Main article: Season twelve characters

See also: Season twelve cast

Actor/actress	Character	Role
Goran Višnjić	Dr. Luka Kovac	Chief of Emergency Medicine
Maura Tierney	Dr. Abby Lockhart	Emergency Medicine Resident (Year 2)
Mekhi Phifer	Dr. Greg Pratt	Emergency Medicine Resident (Year 4)
Sherry Stringfield	Dr. Susan Lewis	Departing Chief of Emergency Medicine
Parminder Nagra	Dr. Neela Rasgotra	Surgical Resident (Year 2)
Linda Cardellini	Nurse Samantha "Sam" Taggart	ER Nurse
Shane West	Dr. Ray Barnett	Emergency Medicine Resident (Year 2)
Scott Grimes	Dr. Archie Morris	Emergency Medicine Chief Resident
Laura Innes	Dr. Kerry Weaver	Chief of Staff

Plot synopsis

Episodes

Main article: Episodes

Season #	Series #	Title	Writer	Director	Original airdate
1	246	Canon City	Lisa Zwerling, John Wells, and Joe Sachs	Christopher Chulack	September 22, 2005
2	247	Nobody's Baby	R. Scott Gemmil	Laura Innes	September 29, 2005
3	248	Man With No Name	David Zabel	Christopher Chulack	October 6, 2005
4	249	Blame It On The Rain	R. Scott Gemmil	Paul McCrane	October 13, 2005
5	250	Wake Up	Janine Sherman Barois	Arthur Albert	October 20, 2005
6	251	Dream House	David Zabel	Stephen Cragg	November 3, 2005
7	252	The Human Shield	R. Scott Gemmil	Laura Innes	November 10, 2005
8	253	Two Ships	Joe Sachs and Virgil Williams	Christopher Chulack	November 17, 2005
9	254	I Do	Lydia Woodward	Gloria Muzio	December 1, 2005
10	255	All About Christmas Eve	Janine Sherman Barrois	Lesli Linka Glatter	December 8, 2005
11	256	If Not Now	David Zabel	John E. Gallagher	January 5, 2006
12	257	Split Decisions	R. Scott Gemmil	Richard Thorpe	January 12, 2006
13	258	Body & Soul	Joe Sachs	Paul McCrane	February 2, 2006
14	259	Quintessence of Dust	Lisa Zwerling and David Zabel	Joanna Kerns	February 9, 2006
15	260	Darfur	Janine Sherman Barrois	Richard Thorpe	March 2, 2006
16	261	Out on a Limb	Karen Maser	Lesli Linka Glatter	March 16, 2006
17	262	Lost in America	Lisa Zwerling	Stephen Cragg	March 23, 2006
18	263	Strange Bedfellows	Virgil Williams	Laura Innes	March 30, 2006
19	264	No Place To Hide	Lydia Woodward	Skipp Sudduth	April 27, 2006
20	265	There Are No Angels Here	R. Scott Gemmil and David Zabel	Christopher Chulack	May 4, 2006
21	266	The Gallant Hero & The Tragic Victor	R. Scott Gemmil	Steve Shill	May 11, 2006
22	267	21 Guns	David Zabel	Nelson McCormick	May 18, 2006