| Jaci Jones | ... | Staffer (3 episodes) |
| Prentice Onayemi | ... | Staffer (3 episodes) |
| Reuel Pendleton | ... | Blair (3 episodes) |
| Larry Pine | ... | Bob Birch (3 episodes) |
| Gilbert Soto | ... | Hispanic Congressman (3 episodes) |
| Sebastian Arcelus | ... | Lucas Goodwin (2 episodes) |
| Boris McGiver | ... | Tom Hammerschmidt (2 episodes) |
| Constance Zimmer | ... | Janine Skorsky (2 episodes) |
| Elizabeth Norment | ... | Nancy Kaufberger (2 episodes) |
| Reed Birney | ... | Rep. Donald Blythe (2 episodes) |
| Maryann Plunkett | ... | Evelyn (2 episodes) |
| Chance Kelly | ... | Steve (2 episodes) |
| Rachel Brosnahan | ... | Call Girl (2 episodes) |
| Reg E. Cathey | ... | Freddy (2 episodes) |
| Donald Imm | ... | Politician (2 episodes) |
| Melissa Panos | ... | White House Reporter (2 episodes) |
| Gary Charles Pick | ... | Politician (2 episodes) |
| Mahershala Ali | ... | Remy Danton (2 episodes) |
| Al Sapienza | ... | Marty Spinella (2 episodes) |
| Dan Ziskie | ... | VP Matthews (1 episode) |
| Francie Swift | ... | Felicity Holburn (1 episode) |
| Karl Kenzler | ... | Sen. Charles Holburn (1 episode) |
| Chuck Cooper | ... | Barney Hull (1 episode) |
| Steven Ted Beckler | ... | Henry Chapman (1 episode) |
| Logan Bennett | ... | Dunkin' Donuts Worker (1 episode) |
| Frank Bliss | ... | Drunkard with Vice President (1 episode) |
| Michael Blumenstock | ... | Reporter (1 episode) |
| Matthew Bowerman | ... | Tech Guy (1 episode) |
| Maria Cecile Callier | ... | Passerby (1 episode) |
| Charlie Dreizen | ... | 20-Year-Old Hit and Run Driver (1 episode) |
| Consuelo M. Edwards | ... | Parishioner (1 episode) |
| T.J. Edwards | ... | Roy (1 episode) |
| Dani Englander | ... | First Lady Patricia Walker (1 episode) |
| Dave Fairbanks | ... | Guest (1 episode) |
| Nathan Ferguson | ... | Lucas Murphy (1 episode) |
| Brian Foreman | ... | Politician (1 episode) |
| Tom Gambrill | ... | Jay Foley - Newspaper Reporter (1 episode) |
| Samuel Ray Gates | ... | Police Officer (1 episode) |
| Michael Gill | ... | President Garrett Walker (1 episode) |
| Doug Henderson | ... | Opera Patron (1 episode) |