Tracy Spiridakos reflects on Hailey Upton’s evolution as FBI Special Agent in major Chicago P.D. crossover

Tracy Spiridakos explains why Hailey Upton’s new role as an FBI Special Agent in Detroit is the perfect next chapter for the former Chicago P.D. detective.

By: AXL Media

Published: Mar 5, 2026, 4:49 AM EST

Source: The information in this article was sourced from Primetimer

The Evolution of Hailey Upton

When Hailey Upton officially exited the Intelligence Unit at the end of the previous season, fans were left wondering where the dedicated detective’s journey would lead her. The recent "One Chicago" crossover event provided those answers, revealing that Upton has transitioned into a new role as an FBI Special Agent based out of Detroit. Speaking on the career shift, actress Tracy Spiridakos expressed that the move "makes sense" given the character's trajectory. Spiridakos noted that after the emotional and professional exhaustion Upton faced in Chicago, the structure and broader scope of the FBI offered a logical next step for someone with her skillset and drive for justice.

A Professional Reconnection in Detroit

Upton’s return was not merely a cameo but a pivotal part of the "Reckoning" crossover event, which saw the Intelligence Unit hunting a culprit behind a devastating chemical attack. The investigation eventually led Voight and his team to Detroit, where they collaborated with federal authorities. This setting allowed for a natural reintegration of Upton into the storyline, showcasing her as a seasoned federal agent who still possesses the sharp instincts she developed under Voight’s mentorship. Spiridakos highlighted that seeing Upton in a leadership capacity outside of the Chicago bubble was a rewarding experience, reinforcing the idea that the character was always destined for a larger stage.

Reunions and Personal Closures

Beyond the professional developments, the crossover touched upon the deeply personal aspects of Upton’s life, specifically her relationship with Jay Halstead. Showrunners leaned into the emotional weight of their history, providing scenes that reflected the maturity and healing both characters have undergone since their respective departures. For Spiridakos, the reunion was about more than just a plot point; it was a tribute to the years of character development that defined the "Upstead" dynamic. Fans were given a glimpse into their current lives, suggesting that while their paths may have taken them away from the 21st District, the bond remains a foundational part of their identities.