“Chicago P.D.” star Tracy Spiridakos to leave series after season 11

Chicago P.D. is saying goodbye to one of its own.

Tracy Spiridakos, who plays Detective Hailey Upton Halstead on the cop procedural, is leaving the series after season 11, EW has learned. It is not yet clear how many episodes Spiridakos will appear in in the upcoming season, which has been delayed as a result of the dual Hollywood strikes, according to Variety, who first reported the news.

Spiridakos has appeared on the NBC show since its fourth season, when she joined as a recurring character. She later became a series regular starting in season 5. Her character also appeared on the series Chicago Fire, Chicago Med, and FBI.

Lori Allen/NBC Tracy Spiridakos in 'Chicago P.D.'

With her departure, she becomes the second Halstead to leave the show. Last August, Jesse Lee Soffer, who played the husband of Spiridakos' character, Detective Jay Halstead, announced he was leaving the show after 10 seasons. Soffer appeared in 189 episodes of the show before his character was ultimately written off, with Jay resigning from Intelligence to take an army job in Bolivia.

"This is sad but true," the actor tweeted at the time. "Just want all the fans to know how grateful I am. You guys are why we do it! It has been an honor. Love you all." (He did return to direct an episode of the procedural, however.)

For her part, Spiridakos has not yet publicly weighed in on her departure.

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