ER
Sleepless in Chicago
Season 1, Episode 18 · Aired 1995-02-23

Synopsis
Benton pulls a 48-hour shift and refuses to sleep, despite Hicks's orders, which later proves disastrous for his mother. A doctor spends the entire day studying the ER as a model for a new hospital, and offers Susan a job; he turns out to be a psych patient who wandered downstairs. Jenn tells Mark she wants a separation. Doug treats an abused young girl, and Carol receives bad news about her attempt to foster Tatiana.
In the series
This episode is part of ER (1994–2009) on NBC.
Steadicam adrenaline and cast breakouts on a weekly trauma loop.
Key cast
- Anthony Edwards as Dr. Mark Greene
- George Clooney as Dr. Doug Ross
- Eriq La Salle as Dr. Peter Benton
- Julianna Margulies as Nurse Carol Hathaway
- Noah Wyle as John Carter
- Gloria Reuben as Jeanie Boulet