Before ‘ER,’ George Clooney Was on ‘E/R’ — Here’s Who Else Worked on Both Shows

This week 40 years ago, the TV show E/R, which was set in a Chicago emergency room and eventually starred George Clooney, debuted on CBS. This week 30 years ago, the TV show ER, which was set in a Chicago emergency room and initially starred George Clooney, debuted on NBC.

E/R, premiering on September 16, 1984, was a sitcom that only lasted one season, perhaps because it was an “awkward mixture of gag comedy and serious illness” at the fictional Clark Street Hospital, in the words of TV historians Tim Brooks and Earle F. Marsh. (Scrubs would eventually crack the medical-comedy code.)

ER, premiering on September 19, 1994, was a drama that lasted 15 seasons, a critical hit about critical care at the fictional County General Hospital. Clooney was the only actor to star in E/R and ER, though an IMDb search reveals that 26 other actors — and at least one crew member — worked on both in some capacity. Here they all are.