Guest Stars Nana Mensah as Billie Appiah Tim Delap as Byron Penny Downie as Frances Munning Kenichiro Thomson as Martin Adam Silver as Howard Georgie Henley as Pensy Graham Miller as Neil Barrow Rosaline Elbay as Nora Koriem Richard Dillane as Tom Libby Sandy Amon-Schwartz as Sandy Allison Janney as Grace Penn Michael McKean as President William Rayburn Pandora Colin as Lydia Trowbridge Alysia Reiner as Agent Griffin Laurel Lefkow as Carole Langetti Simon Hepworth as Randall Richard Huw as Portman Will Gillham as Secret Service Agent Derek Hagen as Secret Service Agent Vanessa Labrie as Secret Service Agent Nick Adamson as Secret Service Agent Calin Bleau as Secret Service Agent Amit Dhut as Secret Service Agent Nicola Peluso as CIA Aide Edward Wu as Secret Service Agent Nathalie Barclay as US Aide Simon Thorpe as Admiral Ruland