Guest Stars Clifton Davis as Ephraim Ware Johanna Day as Admiral Ellen Hill Tracee Chimo as Nina Cummings Francis Jue as Chinese Foreign Minister Chen Yasen Peyankov as Russian Foreign Minister Konstantin Avdonin Tony Plana as Admiral Ed Parker Wentworth Miller as Senator Mark Hanson Tonya Pinkins as Susan Thompson Amanda Warren as Olivia Mason Skipp Sudduth as Peter Harriman Roe Hartrampf as Trevor Kingston Tim Matheson as Fred Moran Caroline Aaron as Edie Moran J. Tucker Smith as Shelton Anderson José Ramón Rosario as Middle-Aged Man Fedna Jacquet as Pregnant Young Woman Co Starring Kenya Brome as Keira Peters Bruce Sabath as Frank Corlent Brian Sutherland as Senator Philip Armstrong Aaron Dalla Villa as Young Man AJ Cedeno as Senior MP