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Sarah Ramos returns as Dr. Lenox in November 11 episode of ‘Chicago Med’

Showrunner Allen MacDonald said the actress’s absence was planned around maternity leave, with her pregnancy kept out of the storyline.

By Priya Ramanathan

Hospital corridor with medical equipment outside patient rooms
Photo: Just Jared

NBC’s “Chicago Med” brings Sarah Ramos back full-time on November 11, when Dr. Caitlin Lenox returns in “Lessons in Chemistry,” the sixth episode of Season 12. Showrunner Allen MacDonald previously confirmed that Ramos would resume her regular role after maternity leave.

Ramos had a short video-call scene in the October 7 premiere, then missed four episodes. MacDonald told Give Me My Remote in August that the series would not incorporate her pregnancy. He also said the premiere appearance was recorded after she came back to film Episode 6.

The drama explained Lenox’s absence through a trip to Zurich, Switzerland. Although colleagues thought she was visiting family during a three-month sabbatical, Lenox was participating in a drug trial for the rare inherited prion disease Gerstmann-Sträussler-Scheinker syndrome.

Preview footage reunites Lenox with Dr. Mitch Ripley, played by Luke Mitchell. MacDonald told TV Insider that seeking treatment had strengthened the characters’ relationship. Ripley, now temporarily leading the emergency department, also evaluates a patient suspected of a decades-old murder in the episode.

NBC will broadcast the episode at 8 p.m. ET. Peacock will offer it for streaming the next day.

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