Trivia: Doug Ross frequently hung his head low, appearing ashamed or thoughtful or privately amused, depending on the scene. This wasn't just an element of the character: George Clooney had taken to writing his lines on papers, sheets, and other props.
Trivia: Every episode has the patient list by the nurse's station. On the patient list, different names are mentioned, like Marguiles or Tierney. They put these names there as a spoof of the show.
Trivia: It is finally revealed here that Dr. Weaver uses the crutch because of congenital hip dysplasia.
Chaos Theory (a.k.a. Unknown Origin) - S9-E1
Trivia: The character of Haleh was supposed to appear in this episode but was written out, and with good reason. This episode picks up right where the previous season's finale left off, but the actress who plays Haleh had lost over 100 pounds over the summer hiatus.
24 Hours (1) (a.k.a. The Longest Day (1)) - S1-E1
Trivia: The first four episodes of the show all began the same way - with one of the doctors being awakened early in the morning from 'Exam 8' at the end of the hallway, in this order: Greene (Pilot), Lewis (Day One), Benton (Going Home), Carter (Hit and Run). Ross (George Clooney) was the only one of the original five who never slept in Exam 8.
Trivia: In this episode, Kovac mentions that he played Hamlet at home in Croatia. Goran Visjnic, who plays Kovac, was discovered by a casting director for ER while playing Hamlet with the Croatian National Theater in Zagreb.
Trivia: In the live broadcast of 1997, the baseball game that George Clooney's character is watching in the break room was the Cubs-Astros game, also being broadcast live that night on WGN.
Trivia: Frances Fisher plays Laura Innes' mother in the episode, even though in real life she's only five years older than Innes.
Going Home - S1-E4
Trivia: Madame X, the patient who nobody knows which doctor is treating her, is played by George Clooney's aunt Rosemary.
The Peace of Wild Things - S6-E6
Trivia: When performing an ED-thoracotomy with Malucci, Dr. Lawrence asks Weaver about the Sauerbruch grip. Dr. Sauerbruch (1875-1951) was a German thoracic surgeon who, despite his great contribution to the field, was forced to stop operating because of dementia.
Answer: A man named Paul Sobriki comes into the ER in the season 6 episode 13 " All in the Family." He is complaining of headaches, Carter and Lucy decide to rule out meningitis and do a lumber puncture. Paul struggles during the procedure and believes that both doctors are stabbing him. Lucy, who is interested in Psych thinks something is wrong with their patient mentally, but Carter is dismissive of her. She gets cross with his attitude and she calls the psych department anyway to have a look at him. Later on and near the closing 20 minutes or so of the episode, all the staff start playing loud music and get a cake which appears to be blue lol, together to party as it's Valentines Day, Carter returns from somewhere and asks where Lucy is. He goes to check one of the rooms for her and Paul Sobriki comes up behind him in the dark and stabs him twice in the lower back, he collapses and as he falls unconscious he sees Lucy on the ground also. In the next episode, Be Still My Heart (ep 14), Dr Weaver discovers them and all of the staff work to try and save them, whilst Carter survives. Lucy's wounds are fatal and suffers a pulmonary embolism as Corday and Romano try to save her. Carter is grief stricken and feels guilty about the way he treated her, he becomes addicted to painkillers and Benton, Greene all help him and book him into rehab.