Reed Edward Diamond is an American actor. He is known for the roles of Det. Mike Kellerman on Homicide: Life on the Street, Jason Pillar in season 8 of 24, and recurring character Laurence Dominic on Dollhouse. He also appeared in The Shield, Journeyman, Bones, The Mentalist, Franklin & Bash, Agents of S.H.I.E.L.D. and Underground. He had a recurring role on the first two seasons of Designated Survivor as John Foerstel, Director of the FBI.