"We both, very excitedly, said yes right away." After catching wind of an undercover military operative being made during a ...

'Chicago P.D.' alums Tracy Spiridakos and Jesse Lee Soffer returned for the special episodes and open up to PEOPLE about ...

Fans of Chicago P.D. finally saw Hailey Upton, played by Tracy Spiridakos, and Jay Halstead, played by Jesse Lee Soffer, ...

Find a recap of everything Upton and Halstead got up to during One Chicago's crossover, as the actors reminisce about their return to Chicago P.D.