Donal Logue will play Harvey Bullock (Geekrest/Tumblr)

Logue was rumored to play Jim Gordon in January before the cast was officially announced. Logue broke the news Feb. 12 of his role as Harvey Bullock.

"I'm super excited," Logue told E! News. "It's going to be here in New York. It's going to be one of those funny things were they're super secretive, so you have to go to a secret place to read a script and give away your phone." 

"Gotham" is an one-hour drama from Warner Bros. Television. The series focuses on the story of Commissioner James Gordon, Batman's ally. The series also feature the villains that brought crime to Gotham, which as you might guess, led Bruce Wayne to becoming Batman, according to The LA Times.

Opposite Logue in the new series is Ben McKenzie from "The O.C." and "Southland" as Jim Gordon. Also cast in the series is Robin Lord Taylor as the Penguin, Sean Pertwee as Alfred Pennyworht, Zabryna Guevara as Captain Essen, Gordon and Bullock's boss; and Erin Richards as Barbara Kean, Gordon's fiancé.  

However just because Logue's character works for the police as a detective doesn't mean that he's always with the good guys.

"Harvey Bullock, he definitely has walked on both sides," Logue said. "There's a morally ambiguous world that he runs in." 

Reach Executive Reporter Dale Chong here. Follow her on Twitter here.