Aaron Sorkin Creator, Executive Producer Jeff Daniels Will McAvoy Actor Emily Mortimer Mackenzie McHale Actor John Gallagher Jr. Jim Harper Actor Alison Pill Margaret Jordan Actor Thomas Sadoski Don Keefer Actor Olivia Munn Sloan Sabbith Actor Dev Patel Neal Sampat Actor Sam Waterston Charlie Skinner Actor Marcia Gay Harden Rebecca Halliday Guest Star Chris Messina Reese Lansing Guest Star Mary McCormack Molly Levy Guest Star B.J. Novak Lucus Pruit Guest Star Clea Duvall Lilly Hart Guest Star Grace Gummer Hailie Shea Guest Star Jimmi Simpson Jack Spaniel Guest Star Paul Lieberstein Richard Westbrook Guest Star Keith Powell Wyatt Geary Guest Star Derek Webster Rodger Hutchinson Guest Star Chris Chalk Gary Cooper Guest Star Adina Porter Kendra James Guest Star A Leslie Kies Alex Thacker Guest Star Jane Fonda Leona Lansing Guest Star Margaret Judson Tess Westin Guest Star Thomas Matthews Martin Stallworth Guest Star John F. Carpenter Herb Wilson Guest Star Riley Voelkel Jenna Johnson Guest Star John Hawkinson Rudy Guest Star Nick Marcucci Eli Shapiro Guest Star Amy Vorpahl Gwen Guest Star Victoria Kelleher Millie Guest Star Emily Wilson Shannon Bryer Guest Star Patrick Birkett Elderly Man Guest Star Michael Hyland Bartender Guest Star Angela Fornero White House Staffer Guest Star Matthew Rocheleau White House Staffer Guest Star Jane Runnalls FBI Tech Guest Star Alan Poul Executive Producer Scott Rudin Executive Producer