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"Do One, Teach One, Kill One"
Season 2, Episode 3 (#28)
Air date October 5, 1995
US viewers 35.6 M
Written by Paul Manning
Directed by Félix Enríquez Alcalá
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Do One, Teach One, Kill One is the third episode of the second season of the NBC medical drama series ER. It premiered on October 5, 1995.


Carter gets his first patient and loses him. Susan's feud with Weaver intensifies when she demands all of Susan's procedures be cleared with her. Chloe abandons Little Susie again for a lucrative career in the flea market business. Carol finishes her paramedic recertification by picking up a very overweight, lethargic man, after which Shep hits on her. Jeanie ends her relationship with Benton. Wendy conducts interviews with various ER staffers for an article on Mark. Doug cares for a four-year-old Asian boy with AIDS.

NBC Description

LEARNING CURVE: Benton allows Carter to do his first unsupervised surgery and Carter accidentally perforates the patient's liver.

Tension between Weaver and Lewis escalates while Ross saves an AIDS baby who was given the wrong medication by a clinic resident.

Shepard and Hathaway grow closer after losing a victim. Chloe abandons baby Susie with Dr. Lewis.

Cast and Characters


Anthony Edwards as Dr. Mark Greene 

George Clooney as Dr. Doug Ross

Sherry Stringfield as Dr. Susan Lewis

Noah Wyle as John Carter

Julianna Margulies as Nurse Carol Hathaway

Eriq La Salle as Dr. Peter Benton


Abraham Benrubi as Jerry Markovic

CCH Pounder as Dr. Angela Hicks

Carlos Gomez as Raul

Yvette Freeman as Haleh Adams

Vanessa Marquez as Wendy Goldman

Gloria Reuben as Jeanie Boulet

Ron Eldard as Shep

Laura Innes as Dr. Kerry Weaver

Kathleen Wilhoite as Chloe Lewis

Laura Cerón as Chuny Marquez

Christine Elise McCarthy as Harper Tracy

Deezer D as Malik McGrath

Christine Harnos as Jennifer Greene


Lucy Liu as Mei-Sun


  • Susan Lewis notices a new board on the wall, with pictures of ER doctors, which was implemented by new ER Chief Kerry Weaver. Among the known ER doctors are pictures of producers Joe Sachs, John Wells, and Wendy Spence Rosato, all wearing lab coats and carrying stethoscopes.
  • A TIPS (transjugular intrahepatic portosystemic shunt) procedure involves putting a wire stent from the hepatic vein through the liver to the portal vein.
  • AZT (azidothymidine), one of Chia-Chia's medications, is credited as being the first approved antiviral drug for HIV (Human Immunodeficiency Virus).
  • Music: "I'm a Poached Egg," George and Ira Gershwin (sung by Mitchell, the rabbit guy); "Adagio for Strings," Samuel Barber
  • In this episode, Kristen Minter makes her first appearance as desk clerk Randi.
  • The title of this episode is a twist on the saying "See one, do one, teach one," a traditional format for acquiring medical skills. It is based on a 3-step process: visualize, perform, regurgitate.


Doug: What can I say about Mark Greene that hasn't already been said? I think everybody knows how he overcame adversity as a child of Quakers, his years in exile, his political writings and limericks, his mod period with the turtlenecks, his blue period and of course, his ruthless march to power and the silencing of his rivals.
Haleh: I've known Mark Greene since he was a wet-behind-the-ears med student. He had the most beautiful curly blond hair and so polite. All I'd do was ask and he would be cleaning the bedpans and changing the sheets. He was the best scut-puppy I ever had.
Wendy: So would you say that, back then, he was sort of "green"?
Haleh: No, Wendy, I would never say that.
Carol: What is this, Crazy Fat Guy Day?
Shep (to Carol): You know what your problem is, Hathaway? You've been going out with too many doctors.


  1. "Nielsen Ratings: September-November 1995 " (PDF). USA Today. (May 22, 2015).