John Doman is an American actor, and a former Marine Corps officer and Vietnam veteran. He's best known for playing Deputy Police Commissioner William Rawls on HBO series The Wire (2002-2008), Colonel Edward Galson on Oz (2001), Rodrigo Borgia in the international television series Borgia (2011–2014), Don Carmine Falcone in Fox's show Gotham (2014–2017), and Bruce Butler in The Affair (2014–2019).

On television, he's had major recurring roles as Dr. Carl Deraad on Seasons 5 and 6 of ER, as CEO Walter Kendrick on Season 2 of Damages, as Senator Ross Garrison on Person of Interest, as Aidan Moran on Feed the Beast, as Jonah Vogelbaum on The Boys, and as Robert Silas on Law & Order: Organized Crime.