Recurring Guest Characters Joyce Vance 4 guest appearances Vaughn Hillyard 4 guest appearances Guest Host 3 guest appearances Guest Host 3 guest appearances Philip Rucker 2 guest appearances Ken Dilanian 2 guest appearances Ryan Nobles 2 guest appearances James Stavridis 2 guest appearances Michael McFaul 2 guest appearances Lisa Rubin 2 guest appearances Catherine A. Christian 2 guest appearances Monica Alba 2 guest appearances Peter Baker 2 guest appearances Katie Phang 1 guest appearances Greg Bluestein 1 guest appearances Glenn Kirschner 1 guest appearances Robert James 1 guest appearances Robert Gibbs 1 guest appearances Brendan Buck 1 guest appearances Kelly O'Donnell 1 guest appearances ⇤ « 1 2 3 » ⇥