NBCUNIVERSAL EVENTS -- "One Chicago Day" -- Pictured: (l-r) Rachel DiPillo, Torrey Devitto, "Chicago Med", Miranda Rae Mayo, "Chicago Fire", Tracy Spiridakos, "Chicago P.D." Norma Kuhlina, S. Epatha Merkerson, "Chicago Med", Kara Killmer, "Chicago Fire", Amy Morton, "Chicago P.D." at the "One Chicago Day" Party at Prime & Provisions in Chicago, IL on October 30, 2017 -- (Photo by: Elizabeth Sisson/NBC)