We now have the first officially released images of Donal Logue as Harvey Bullock and 14-year-old Camren Bicondova as Selina "Catwoman" Kyle in the Gotham TV series. Logue always resembled Bullock, anyway, so all they had to do was give him the proper gumshoe attire.
The show is an origin story for Detective Jim Gordon (Ben McKenzie) and young Bruce Wayne (David Mazouz), taking place soon after the latter's parents are murdered. We know that's the event that leads Bruce to eventually take up the mantle of Batman, and if showrunners have their way we'll see the suit in the final episode.
Bullock is Gordon's rough 'n tumble partner on the Gotham police force, similar to the character seen in the DC comics. Kyle is described as "a teenage orphan, who is suspicious and wholly unpredictable. A street thief and skilled pickpocket, she's dangerous when cornered", totally in line with the Catwoman we've come to know.
