Keith Szarabajka is an American actor and voice artist. Some of his best known roles include Mickey Kostmayer on The Equalizer, Daniel Holtz, the Vampire Hunter on WB's Angel, Harlan Williams in the 1991 Stephen Kingminiseries Golden Years and Gerard Stephens in The Dark Knight. He Is also known for portraying Detective Herschel Biggs in the 2011 crime thriller L.A Noire. Keith has also appeared as James Grady in Season 7 Episode 7 of Castle