Donal Francis Logue is a Canadian actor. He starred in the film The Tao of Steve and has had roles in the TV series Sons of Anarchy, Vikings, Grounded for Life, Copper, Terriers, and, as Detective Harvey Bullock on Fox's Gotham. He additionally played the recurring role of Lt. Declan Murphy in NBC's Law & Order: Special Victims Unit.

Gotham is an American superhero crime drama television series developed by Bruno Heller, produced by Warner Bros. Television and based on characters from the Batman mythos in comic books published by DC Comics. The series originally aired on Fox from September 22, 2014, to April 25, 2019, over five seasons, comprising a total of 100 episodes. It features an ensemble cast that includes Ben McKenzie as James "Jim" Gordon, Donal Logue as Harvey Bullock, and David Mazouz as Bruce Wayne. The show follows Gordon's early days at the Gotham City Police Department following the murder of Bruce's parents, as well as the origin stories of Batman's infamous rogues gallery.