Mark Feuerstein

Mark Feuerstein is an American actor. He is known for his portrayals of Clifford "Cliff" Calley in NBC's series The West Wing and of Dr. Henry "Hank" Lawson in USA Network's series Royal Pains. He co-starred as Jacob Anton Ness in the revival of Fox's Prison Break in 2017. He formerly produced and starred on the CBS sitcom 9JKL.