Neal McDonough is an American actor and producer. He is known for his portrayal of Lieutenant Lynn "Buck" Compton in the HBO miniseries Band of Brothers (2001), Deputy District Attorney David McNorris on Boomtown (2002–2003), Sean Cahill on Suits, Robert Quarles on Justified, William Parker in Mob City, and Dave Williams on ABC's Desperate Housewives (2008–2009). He has also appeared in films such as Star Trek: First Contact, Minority Report, Walking Tall, The Guardian, Flags of Our Fathers, Red 2, The Marine 3: Homefront, Traitor, The Hitcher, Paul Blart: Mall Cop 2, Proud Mary, and as Dum Dum Dugan in various Marvel Cinematic Universe films and TV series. He has appeared as Damien Darhk on Arrow, Legends of Tomorrow, and The Flash. He also plays as Malcolm Beck on Yellowstone. He is also known for voicing a variety of comic book characters in both Marvel and DC properties, most notably Bruce Banner in the animated series The Incredible Hulk (1996–1997). He appeared as President Dwight D. Eisenhower on the tenth season of American Horror Story.