ER · Season 12 · NBC
ER Season 12
ER Season 12 is a ONE-TIME WATCH. 22 episodes on NBC from 22 September 2005.
Updated
What BollyAI Thinks
Season 12 brought renewed attention when Julianna Margulies returned as Carol Hathaway for a guest arc, demonstrating that the original ensemble retained audience affection even years after their departures. The season otherwise held steady in the show's late-run mode: proficient, character-driven, and unambitious about reinventing itself at this stage of its run.
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The Room
7.9/10IMDb audience
Season Over Season
Margulies' return provides a genuine emotional jolt in an otherwise steady late-run season.