Tracy Spiridakos picks favorite Chicago PD episode after her exit

The Hailey Upton era is officially over. She was an integral part of Chicago PD for nearly a decade, but she decided to turn her badge in and pursue a life elsewhere in the season 11 finale. It was sad to see her go, but at the same time, she looked happier doing so that she had in quite a while.

Tracy Spiridakos, the actress who plays Upton, decided that season 11 was going to be her last before production even started. She decided that she wanted to pursue different things in her life, and was eager to given Upton the sendoff she deserved. The actress has also broken her silence in terms of interviews, and opened up about her time on PD as a whole.

Tracy Spiridakos' favorite Chicago PD season is 9

Spiridakos sat down for an interview with Entertainment Weekly shortly after the finale aired. She discussed the emotional production, the shocking cameo nobody saw coming, and perhaps, most interestingly, her favorite ever Chicago PD episode.

The actress has been part of some of the most beloved episodes in the show's history, and she initially struggled to name just one. Her mind initially went to the season 9 episode "In the Dark," in which her character's ex-husband, Jay Halstead (Jesse Lee Soffer), suffered a panic attack. "That arc was a very intense one but really fun," she recalled.

The actress' favorite episode is "Still Water"

Her ultimate pick, however, is the season 9 episode "Still Water." This was an Upton-centric story arc in which the character witnessed a car crash during a night run, and risks her life to save the surviving passengers. It was a particularly action-packed episode, which is part of why it stands out to the actress:

"'Still Water' will go down as my favorite episode that we've gotten to do. It felt like its own adventure. All the stunts that were associated with it and the story was so cool and interesting."

Spiridakos did ultimately bring things back to the season 11 finale, "More," however. She voiced how happy she was with Upton's arc, and even suggested that fans may get to see again in the future. "I would love that," she teased.