ER ( season 6 ) - wikipedia ER ( season 6 ) ER ( season 6 ) ER Season 6 DVD cover Starring Anthony Edwards Noah Wyle Julianna Margulies Gloria Reuben Laura Innes Alex Kingston Kellie Martin Paul McCrane Goran Visnjic Maura Tierney Michael Michele Erik Palladino Ming - Na Eriq La Salle Country of origin United States No. of episodes 22 Release Original network NBC Original release September 30, 1999 -- May 18, 2000 Season chronology ← Previous Season 5 Next → Season 7 List of ER episodes The sixth season of the American fictional drama television series ER first aired on September 30, 1999 and concluded on May 18, 2000. The sixth season consists of 22 episodes. Contents 1 Plot 2 Cast 2.1 Main cast 2.2 Supporting cast 2.3 Guest stars 3 Production 4 Episodes 5 References 6 External links Plot In the first major cast change in ER, the sixth season sees the addition of four new characters including long term cast members Dr. Luka Kovač and nurse, later third - year medical student, Abby Lockhart, also added are Dr. Cleo Finch and Dr. Dave Malucci. Paul McCrane is now billed as a series regular and the return of Deb Chen from season 1, now known as Dr. Jing - Mei Chen. Physician Assistant Jeanie Boulet leaves to care for her HIV - positive child. Lucy Knight and John Carter are attacked and stabbed by a psychotic patient. They are unable to save Lucy who succumbs to her wounds and dies. In addition Croatian doctor Luka Kovač joins the team and struggles to gain the respect and trust from his new colleagues in the ER. Hathaway struggles to begin parenting on her own, then decides to leave Chicago to begin a new life with Doug Ross. Greene and Corday begin their relationship and he deals with the death of his father. Abby Lockhart begins her third - year - med - student rotation. While still recovering from the violent attack that left him near death and killed Lucy, Carter develops an addiction to pain medication, forcing Greene, Weaver along with Benton and the other doctors into an intervention to get Carter to realize that he 's an addict. Carter then accepts that he 's an addict and checks into a rehab in the season finale with Benton accompanying him. Cast Main cast Anthony Edwards as Dr. Mark Greene - Attending Physician Noah Wyle as Dr. John Carter - Third Year Resident Julianna Margulies as Carol Hathaway - Nurse Manager Gloria Reuben as Jeanie Boulet - Physician Assistant Laura Innes as Dr. Kerry Weaver - Chief of Emergency Medicine Alex Kingston as Dr. Elizabeth Corday - Associate Chief of Surgery Kellie Martin as Lucy Knight - Fourth Year Medical Student Paul McCrane as Dr. Robert Romano - Chief of Staff and Chief of Surgery Goran Visnjic as Dr. Luka Kovač - Attending Physician Maura Tierney as Abby Lockhart - Third Year Medical Student Michael Michele as Dr. Cleo Finch - Second Year Pediatric Resident Erik Palladino as Dr. Dave Malucci - Second Year Resident Ming - Na as Dr. Jing - Mei Chen - Third Year Resident Eriq La Salle as Dr. Peter Benton - Surgical Trauma Fellow Supporting cast Doctors and Medical Students Alan Alda as Dr. Gabriel Lawrence - Attending Physician Sam Anderson as Dr. Jack Kayson - Chief of Cardiology Amy Aquino as Dr. Janet Coburn - Chief of Obstetrics and Gynecology John Aylward as Dr. Donald Anspaugh - Surgical Attending Physician, Hospital Board Member John Doman as Dr. Carl DeRaad - Chief of Psychiatry Scott Jaeck as Dr. Steven Flint - Chief of Radiology David Brisbin as Dr. Alexander Babcock - Anesthesiologist Nurses Ellen Crawford as Nurse Lydia Wright Conni Marie Brazelton as Nurse Conni Oligario Deezer D as Nurse Malik McGrath Laura Cerón as Nurse Chuny Marquez Yvette Freeman as Nurse Haleh Adams Lily Mariye as Nurse Lily Jarvik Gedde Watanabe as Nurse Yosh Takata Dinah Lenney as Nurse Shirley Bellina Logan as Nurse Kit Kyle Richards as Nurse Dori Staff and Paramedics Erica Gimpel as Social Worker Adele Newman Kristin Minter as Desk Clerk Miranda `` Randi '' Fronczak Troy Evans as Desk Clerk Frank Martin Andrew Bowen as Desk Clerk Andrew Pamela Sinha as Desk Clerk Amira Emily Wagner as Paramedic Doris Pickman Monté Russell as Paramedic Dwight Zadro Lyn Alicia Henderson as Paramedic Pamela Olbes Demetrius Navarro as Paramedic Morales Brian Lester as Paramedic Brian Dumar Michelle Bonilla as Paramedic Christine Harms Cress Williams as Officer Reggie Moore Family Khandi Alexander as Jackie Robbins Lisa Nicole Carson as Carla Reece - Simmons John Cullum as David Greene Yvonne Zima as Rachel Greene Judy Parfitt as Isabelle Corday Frances Sternhagen as Millicent Carter Guest stars Rebecca De Mornay as Elaine Nichols Emile Hirsch as Chad Kottmeier David Krumholtz as Paul Sobriki Liza Weil as Samantha Sobriki Shia LaBeouf as Darnel Smith Anton Yelchin as Robbie Edelstein George Clooney as Dr. Doug Ross ( uncredited ) Randolph Mantooth as Policeman at school Vincent Kartheiser as Jesse Keehan Martha Plimpton as Meg Corwin Mitch Pileggi as Terry Waters Gabrielle Union as Tamara Davis Production Original executive producers John Wells and Michael Crichton reprised their roles. Lydia Woodward also returned as an executive producer but left the crew with the close of the season. Long - time crew member and fifth season executive producer Christopher Chulack moved on to executive produce Wells ' new series Third Watch but remained a consulting producer for ER. Fifth season supervising producers Jack Orman and Neal Baer were promoted to co-executive producers for the sixth season. R. Scott Gemmill joined the crew as a supervising producer and writer. Fifth season producers Penny Adams and Wendy Spence Rosato returned for the sixth season. Fifth season co-producers Richard Thorpe and Jonathan Kaplan were promoted to producers for the sixth season. They were joined by new producers Doug Palau and Patrick Harbinson. Palau left the crew mid-season and Adams and Harbinson left at the end of the season. Michael Salmunovich returned as a co-producer and Teresa Salamunovich joined the crew, initially as a production co-ordinator but was promoted to associate producer mid-season. She was joined by new associate producer Vicki Voltarel who was on staff for the second half of the season only. Wells and Woodward continued to write episodes and Wells contributed two episodes while Woodward wrote three. Orman wrote four episodes and Baer, Harbinson, and Gemmill each wrote three. Series medical expert and fifth season story editor Joe Sachs was promoted to executive story editor for the sixth season and he wrote a further two episodes. Regular writer Linda Gase replaced him as story editor and contributed a further episode. New writer Sandy Kroopf wrote a single episode. Producers Kaplan and Thorpe served as the seasons regular directors ; Kaplan directed five episodes and Thorpe helmed three. Cast members Laura Innes and Anthony Edwards each directed a further episode. Returning directors were Lesli Linka Glatter, Félix Enríquez Alcalá, Christopher Misiano, David Nutter, and Steve De Jarnatt. New directors include Ken Kwapis, Marita Grabiak, medical consultant Fred Einesman, Kevin Hooks, and Peter Markle. Episodes See also : List of ER episodes No. in series No. in season Title Directed by Written by Original air date Production code U.S. viewers ( millions ) 114 `` Leave It to Weaver '' Jonathan Kaplan Lydia Woodward September 30, 1999 ( 1999 - 09 - 30 ) 225451 31.53 Greene and Weaver agree to go out on a limb to oppose Romano 's appointment as chief of staff. However, soon Greene finds he is out there and alone, while Weaver reaps immediate benefits for her treachery. Plus : Luka Kovač is an able, yet untrusted, physician from Croatia arrives at the ER for his first day of work ; Carter 's interested in a romance with his cousin 's ex-wife ; and Hathaway adjusts to being pregnant alone. NOTE : First Appearances of Dr. Luka Kovač and Dr. Cleo Finch. 115 `` Last Rites '' Félix Enríquez Alcalá Jack Orman October 7, 1999 ( 1999 - 10 - 07 ) 225452 28.20 Who 's the boss ? Weaver may be head of the ER, but Greene has his own ideas about how to handle situations and after his mother 's death the two of them have their worst conflict on the job yet. Boulet says `` yes '' to Reggie, and Corday accepts Romano 's surprise job offer. A brash new resident arrives and manages to annoy just about everyone. Carla confronts Benton about not allowing her to leave the country with their son. Carter and Elaine 's relationship continues. NOTE : First Appearance of Dr. Dave Malucci. 116 `` Greene with Envy '' Peter Markle Patrick Harbinson October 14, 1999 ( 1999 - 10 - 14 ) 225453 30.45 Newly appointed attending physician Gabriel Lawrence is savvy, personable and, in Greene 's jealous opinion, unsuitable for County. Jeanie and Reggie marry, but not under the circumstances they expected. Romano makes Corday show a rude reporter around the ER, where she witnesses a shootout. Carter tries to be supportive as Elaine undergoes her mastectomy. Greene and Corday spend their first night together. 117 `` Sins of the Fathers '' Ken Kwapis Doug Palau October 21, 1999 ( 1999 - 10 - 21 ) 225454 N / A Greene deals with the fallout from his dad 's car accident. Lawrence suspects a teen 's suicide attempt is the fallout from father - son strife, but he is wrong. Finch misdiagnoses a little girl 's behavior before an iron overdose has the staff battling to save the little girl although they are unsuccessful. Hathaway tries to help a pregnant woman get a job at the hospital, and Dr. Dave Malucci is a jerk again. Carter makes plans to meet with Elaine. 118 5 `` Truth & Consequences '' Steve De Jarnatt R. Scott Gemmill November 4, 1999 ( 1999 - 11 - 04 ) 225455 N / A A high school science experiment / prank gone - wrong lands students and teachers in the ER - and the stress of multiple emergencies pushes Lawrence over the edge. Greene defends a patient from a violent parent and ends up being castigated for it. Lucy helps counsel one of the injured students. Hathaway learns the pregnant woman she wanted to help is using drugs. Elaine tells Carter that she intends to go to Europe for a couple of months asking him not to contact her. 119 6 `` The Peace of Wild Things '' Richard Thorpe John Wells November 11, 1999 ( 1999 - 11 - 11 ) 225456 N / A Boulet resigns to be a full - time mother. An elderly woman bids farewell to her dying husband, and Lawrence admits he is in the early stages of Alzheimer 's, and that his distinguished career is over. Hathaway takes action regarding the pregnant drug - addict case. An explosion rocks the ER, and Benton tells Carla why he is fighting to stay in his son 's life. NOTE : Final Regular Appearance of Physician Assistant Jeanie Boulet. 120 7 `` Humpty Dumpty '' Jonathan Kaplan Neal Baer November 18, 1999 ( 1999 - 11 - 18 ) 225457 28.77 Lawrence departs ( but not before saving a life ), and Kovač comes aboard full time after earning Weaver 's respect. Corday discovers her new trauma patient is a rapist and takes extreme measures to find his latest victim. Hathaway and the formerly pregnant drug - using woman have a confrontation. Carter angles for more responsibility inside the ER. Greene 's father was due to fly into Chicago but shows up hours after his scheduled arrival time. And the Bright Star Gospel Choir is rushed to the ER. 121 8 `` Great Expectations '' Christopher Misiano Jack Orman November 25, 1999 ( 1999 - 11 - 25 ) 225458 30.80 It is Thanksgiving, and Hathaway has two more reasons to give thanks after overcoming complications and delivering twins Tess and Kate. Greene 's family celebration comes with its own complications. Malucci stuns the staff by actually having a valid idea to treat a patient that works. NOTE : First Appearance of Nurse Abby Lockhart. 122 9 `` How the Finch Stole Christmas '' Fred Einesman Linda Gase December 16, 1999 ( 1999 - 12 - 16 ) 225459 29.10 Lucy risks Romano 's wrath ( and her career ) to arrange a heart operation for a patient. Carter gives gifts to inner city kids in exchange for their guns. Finch uses her authority to put a teen binge drinker into rehab. Benton and Carla 's custody battle comes to an abrupt end that works out in his favor. Weaver befriends a group of Santas and works on County 's Y2K preparation. 123 10 `` Family Matters '' Anthony Edwards Patrick Harbinson January 6, 2000 ( 2000 - 01 - 06 ) 225460 28.69 Deb Chen returns to the ER as Jing - Mei Chen and immediately shows off her great photographic memory to Carter 's annoyance. Kovač 's strong sense of family involves him in the fate of brothers facing separation. Greene invites his dad to reside with him in Chicago. Malucci fixes Weaver 's car and learns a young patient has a fatal disease. Goofball students arrive in the ER to do a scavenger hunt. Benton does not agree with Cleo 's approach to an overstressed young high school athlete. NOTE : Dr. Jing - Mei `` Deb '' Chen returns to the show after having been a recurring guest star in Season 1. 124 11 `` The Domino Heart '' Lesli Linka Glatter Joe Sachs January 13, 2000 ( 2000 - 01 - 13 ) 225461 N / A A precious donor heart becomes available when a patient who recently received it dies, devastating Lucy. Malucci gathers evidence to shut down a backroom clinic. Carter and Chen disagree on when to follow rules and when to break them. Greene learns a man is being abused by his boyfriend. 125 12 `` Abby Road '' Richard Thorpe R. Scott Gemmill February 3, 2000 ( 2000 - 02 - 03 ) 225462 N / A Abby Lockhart, the part - time OB nurse who cared for Hathaway during `` Great Expectations '', reports to the ER for her third - year med - student rotation. Hathaway has a hunch that a young patient 's health problems come from his mother. Carter and Cleo try to help a sick boy and the unpopular student he fought with. Weaver leaves the ER due to the flu, while Malucci works in spite of it and Benton angles Romano 's illness into some help for a young girl who was mauled by a dog. 126 13 `` Be Still My Heart '' Laura Innes Lydia Woodward February 10, 2000 ( 2000 - 02 - 10 ) 225463 31.33 It 's a tense Valentine 's Day in the ER with the case including an operation on Romano 's dog and a car crash that leaves two children orphaned while a patient, Paul Sobriki ( David Krumholtz ) complaining of headaches arrives in to be treated and his symptoms has Lucy suspecting that the patient has schizophrenia but her warnings to Carter go ignored which later results in disastrous consequences for the entire ER. The episode then ends in a cliffhanger as both Carter and Lucy lie on the ground, bleeding heavily, Sobriki having attacked and stabbed both of them while suffering a psychotic episode. 127 14 `` All in the Family '' Jonathan Kaplan Jack Orman February 17, 2000 ( 2000 - 02 - 17 ) 225464 39.38 The ER 's Valentine Day party continues as Weaver arrives for her shift. Weaver later stumbles into an Exam Room and discovers both Carter and Lucy on the floor of patient Paul Sobriki 's room, both doctors unconscious and bleeding heavily after Sobriki attacked and stabbed them while suffering a psychotic episode. The celebrations then abruptly ends as the ER staff jump into action and find themselves battling against the clock and ever - decreasing odds to save their grievously wounded colleagues, both of whom are hovering between life and death. As Carter and Lucy are brought up to surgery, the ER staff attempt to come to terms with what has happened. Luka tries with little success to convince Sobriki 's wife, Samantha, that her husband is gravely ill. In the OR, it 's chaos as Benton and Anspaugh fight to save Carter while in another operating room, Corday and Romano battle to save Lucy. Meanwhile Cleo finds herself being forced into a surgical role when it becomes obvious that Benton will not leave Carter. Corday and Romano desperately try to save Lucy 's life, but she succumbs to her injuries and dies, leaving the entire ER team grief - stricken and devastated. NOTE : Final Appearance of Medical Student Lucy Knight. 128 15 `` Be Patient '' Ken Kwapis Sandy Kroopf February 24, 2000 ( 2000 - 02 - 24 ) 225465 31.31 Carter struggles with rehab and knowledge of Lucy 's fate, a child is injured in a hit and run in front of Kovač ( and the driver later turns up in the ER ), and a teen has cervical cancer after becoming infected with HPV. Even a happy event, a romance between Isabelle and David Greene, turns sad when Greene learns his dad is terminally ill. 129 16 `` Under Control '' Christopher Misiano Neal Baer & Joe Sachs March 23, 2000 ( 2000 - 03 - 23 ) 225466 27.19 `` We can handle this. '' This, it turns out, involves a Gila monster, toxic breast milk, a deadly error and much more as Greene oversees a particularly hectic shift. Carter, despite his pain, returns to work. Chen is attracted to a very handsome male nurse. 130 17 `` Viable Options '' Marita Grabiak Patrick Harbinson April 6, 2000 ( 2000 - 04 - 06 ) 225467 27.50 Kovač and Corday must select a recipient while a donor kidney is still viable. Weaver defies Romano on treating a poorly - insured patient and is suspended. Benton 's careless penmanship results in a patient taking the wrong drug, and he blames Finch when the patient ends up in the ER and later in the operating room having suffered a heart attack. Chen wants to tell the daughter of a patient about her father 's diagnosis of Huntington 's Disease but Greene puts the brakes on that. Greene has his own conflict with both his father and Corday over David 's desire to check into a hospice care center. 131 18 `` Match Made in Heaven '' Jonathan Kaplan R. Scott Gemmill April 13, 2000 ( 2000 - 04 - 13 ) 225468 26.01 A notice of Lucy 's acceptance into psych residency deepens Carter 's remorse. Greene cares for his dad. Hathaway has news from Ross. An overwhelmed mother tries to induce a miscarriage before getting abortion help from Abby. 132 19 `` The Fastest Year '' Richard Thorpe Lydia Woodward April 27, 2000 ( 2000 - 04 - 27 ) 225469 27.38 Memories. After his father reminisces about his Navy days, Greene takes him on a final boat ride on Lake Michigan. Meanwhile, Carter is haunted by terrifying thoughts of the attack that almost killed him. Kovač helps Hathaway buy a used car, before describing what happened to his family in Vukovar. Abby goes too far when trying to arrange for a bone marrow transplant. 133 20 `` Loose Ends '' Kevin Hooks Neal Baer May 4, 2000 ( 2000 - 05 - 04 ) 225470 26.65 Malucci treats a little girl who was molested by her father. Hathaway 's birthday is anything but happy. Benton and Kovač clash over follow - up care. Carter seems reinvigorated but also ignores the orders of his supervisors. Greene and his dad manage to express their love just before David passes away. 134 21 `` Such Sweet Sorrow '' John Wells John Wells May 11, 2000 ( 2000 - 05 - 11 ) 225471 32.67 Do open arms still await her in Seattle ? Touched by a family tragedy at the ER, Hathaway realizes she must see Ross. Chen notices Carter 's increasing unreliability and mood swings. Abby is supervised by Malucci on a case that leads Corday to tell him that no one at County thinks he is any good at his job. NOTE 1 : Final Regular Appearance of Nurse Manager Carol Hathaway. NOTE 2 : George Clooney makes an unexpected uncredited cameo as Dr. Doug Ross in this episode. 135 22 `` May Day '' Jonathan Kaplan Jack Orman May 18, 2000 ( 2000 - 05 - 18 ) 225472 34.59 Kovač and Benton rush to the scene of a school shooting, leading to a confrontation over who is the most critical patient : the shooter or one of his victims. The team plan an intervention when Carter 's addiction forces them to act. Kovač 's sense of right and wrong influences his care for his patients. References Jump up ^ Episode 16. Jump up ^ Episode 21. Also, Season 1, Episode 1 ( Pilot ). Jump up ^ Episodes 15, 17, 18, 19, 20. Jump up ^ Episodes 1, 2, 3, 4, 5. ^ Jump up to : Episodes ?. Also, Season 8. Jump up ^ Episode 21, uncredited. Jump up ^ Episode 22, uncredited. Jump up ^ Episode 5. Jump up ^ Episodes 4 - 7. ^ Jump up to : `` SpotVault - ER ( NBC ) - 1999 - 2000 Ratings ''. Spotted Ratings. December 4, 2013. Retrieved July 15, 2015. Jump up ^ `` Dateline : Week Of November 22, 1999 In News, Pop, Celebrity, Entertainment, Music, Tech & Fascinating Facts ''. Mr. Pop Culture. Retrieved July 15, 2015. Jump up ^ Pucci, Douglas ( December 18, 2008 ). `` Top 20 Television Programs November 22 - 28, 1999 ''. Mediaweek. Archived from the original on January 17, 2010. Retrieved July 15, 2015. Jump up ^ `` Dateline : Week Of January 8, 2000 In News, Pop Culture, Tech, Celebrity, Entertainment & Fascinating Facts ''. Mr. Pop Culture. Retrieved July 15, 2015. Jump up ^ `` Dateline : Week Of March 22, 2000 In News, Pop, Celebrity, Entertainment, Music, Tech & Fascinating Facts ''. Mr. Pop Culture. Retrieved July 15, 2015. Jump up ^ `` Dateline : Week Of May 8, 2000 In News, Pop, Celebrity, Entertainment, Music, Tech & Fascinating Facts ''. Mr. Pop Culture. Retrieved July 15, 2015. External links Event data as RDF hide ER Characters Main John Carter Kerry Weaver Abby Lockhart Luka Kovač Mark Greene Peter Benton Robert Romano Elizabeth Corday Susan Lewis Greg Pratt Carol Hathaway Neela Rasgotra Samantha Taggart Jing - Mei Chen Archie Morris Doug Ross Jeanie Boulet Tony Gates Cleo Finch Dave Malucci Lucy Knight Anna Del Amico Catherine Banfield Supporting Doctors Nurses Non-medical staff Family members and friends Seasons 5 6 7 8 9 10 11 12 13 14 15 Episodes `` Love 's Labor Lost '' `` On the Beach '' `` The Show Must Go On '' `` Strange Bedfellows '' `` No Place to Hide '' `` There Are No Angels Here '' `` The Gallant Hero and the Tragic Victor '' `` Twenty - One Guns '' `` And in the End... '' Related Cast Awards and nominations Retrieved from `` https://en.wikipedia.org/w/index.php?title=ER_(season_6)&oldid=828361951 '' Categories : ER ( TV series ) 1999 American television seasons 2000 American television seasons ER ( TV series ) seasons Hidden categories : Infobox television season articles that use the season name parameter All articles with dead external links Articles with dead external links from May 2017 Talk Contents About Wikipedia Español Français Italiano Magyar Português Русский Српски / srpski Edit links This page was last edited on 2 March 2018, at 02 : 40 ( UTC ). Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: er episode where carter and lucy get stabbed
Answer: Be Still My Heart