Donal Logue

Donal Francis Logue (born February 27, 1965 or 1966) (sources vary) is a Canadian-born, American film and television actor, producer and writer. 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, Fox's Gotham. He additionally played the recurring role of Lt. Declan Murphy in NBC's Law & Order: Special Victims Unit.

He portrayed as Denny in the CBS comedy series The Unicorn.