| Mackenzie Allen has a lot on her plate -- she has twin teenagers, a 6-year-old at home and an ambitious husband at the office, and she is about to become the first female president of the United States. Before that happens, however; Mackenzie, who serves as vice president, has to decide whether or not to go against the dying wishes of the current president, who has asked her to step down and let someone "more appropriate" fill his shoes in the Oval Office. Not only does the president want her to resign, so does the entire party that elected her in the first place. But when the moment of truth arrives, Mackenzie isn't willing to be a mere footnote in history. Instead of allowing her detractors to keep her down, she decides to trust her instincts and accept the most powerful job in the world. |
| Name | Character | Episodes |
|---|---|---|
| Donald Sutherland | Nathan Templeton | 18 |
| Geena Davis | Mackenzie Allen | 18 |
| Matt Lanter | Horace Calloway | 18 |
| Anthony Azizi | Vince Taylor | 18 |
| Harry Lennix | Jim Gardner | 18 |
| Caitlin Wachs | Rebecca Calloway | 18 |
| Kyle Secor | Rod Calloway | 18 |
| Ever Carradine | Kelly Ludlow | 18 |
| Natasha Henstridge | Jayne Murray | 16 |
| Polly Bergen | Kate Allen | 10 |
| Mark-Paul Gosselaar | Richard 'Dickie' McDonald | 10 |
| Samantha Eggar | Sara Templeton | 9 |
| Pamela Dunlap | Gilda Rockwell | 8 |
| Peter Coyote | Warren Keaton | 7 |
| Ned Vaughn | Reporter Charlie | 7 |
| Kristen Shaw | Norah Woodruff | 7 |
| Donzaleigh Abernathy | Reporter Patricia | 6 |
| Hira Ambrosino | Laura | 6 |
| Eyal Podell | Eli Meltzer | 6 |
| Julie Ann Emery | Joan Greer | 5 |
| Matt Barr | Mike Fleming | 5 |
| Alex Fernandez | Anthony Prado | 5 |
| John Sloan | Reporter Barry | 5 |
| Jenna Gavigan | Jenny | 5 |
| Leslie Hope | Melanie Blackston | 4 |
| Jason Wiles | Alex Williams | 4 |
| Mary Page Keller | Grace Bridges | 4 |
| Larry Sullivan | Dan Pierce | 4 |
| Mark Thompson | Gordon Blake | 4 |
| Chris Ufland | Thad Thibideau | 3 |
| Phil Reeves | General Krieger | 3 |
| Kate Jennings Grant | Reporter Samantha | 3 |
| Christopher Allport | Secretary Francis | 3 |
| Dale Dye | General Peter Allyson | 3 |
| David Wells | Usher Waverly | 3 |
| Scott Atkinson | Reporter Steve | 3 |
| Rick Hoffman | Lance Addison | 2 |
| Adam Arkin | Carl Brantley | 2 |
| Jamie McShane | Captain Andrew Dugan | 2 |
| Michael O'Neill | Congressman Wilcox | 2 |
| Patrick J. Adams | Colin James | 2 |
| Tzi Ma | Chinese Ambassador | 2 |
| Tony Plana | Pete Ragone | 2 |
| Lisa Ross | Reporter Connie | 2 |
| Marc Gomes | Ken Iacampo | 2 |
| Gina St. John | Newscaster Morgan | 2 |
| Will Lyman | Teddy Bridges | 2 |
| Barbara Eve Harris | Lynn | 2 |
| Mary-Joan Negro | Margaret Shoop | 2 |
| Kim Hawthorne | Agent Powers | 2 |
| Gareth Williams | 2 | |
| Kent Shocknek | News Anchor Ben | 2 |
| Hunter Allan | Tommy Bridges | 2 |
| Angela Martinez | Newscaster | 2 |
| Sam Jaeger | Vince's Partner | 1 |
| Alona Tal | Courtney Winters | 1 |
| Hayden Panettiere | Stacy | 1 |
| Nestor Carbonell | Dr. Kyle Brock | 1 |
| George Cheung | North Korean Representative Nang | 1 |
| Tamlyn Tomita | Randy | 1 |
| Iris Bahr | Tuba Ozel | 1 |
| Sam Sako | Turkish Prime Minister (voice) | 1 |
| Sarah Clarke | Christine Chambers | 1 |
| Orson Bean | Bill Harrison | 1 |
| Robert Joy | Frank Devane | 1 |
| Jeanette O'Connor | Jan Spector | 1 |
| Ato Essandoh | Manute Obama | 1 |
| Tim Daly | Cameron Manchester | 1 |
| Michael Trevino | Kevin | 1 |
| Joshua Bitton | Male Audience Member | 1 |
| Russell Wong | Cabinet Member | 1 |
| Jonathan Scarfe | Richard Laughlin | 1 |
| Talia Balsam | Ruth | 1 |
| Judith Hoag | Syndi Saltzman | 1 |
| Allan Kolman | Fat Cat #1 | 1 |
| Gwynyth Walsh | Jackie Ross | 1 |
| Ana Ortiz | Isabelle Rios | 1 |
| Gideon Emery | Jared Lyons | 1 |
| Michael Kostroff | Reporter Cy | 1 |
| Carolyn Hennesy | TV Interviewer | 1 |
| Ilia Volok | Dmitri Kharkov | 1 |
| Kim Robillard | Principal Stokes | 1 |
| Natasha Wilson | Molly Parker | 1 |
| DeJuan Guy | Kid #3 | 1 |
| Chase Kim | Secret Service Agent | 1 |
| Elliott Grey | Businessman #1 | 1 |
| William Lucking | Harry McHenry | 1 |
| Angus Sutherland | Young Nathan Templeton | 1 |
| Travis Aaron Wade | Reporter #3 | 1 |
| Terri Hoyos | Governor Maria Nuñez | 1 |
| Brandon Douglas | Reporter (uncredited) | 1 |
| Elizabeth Barondes | Nurse Sheila | 1 |
| Andi Chapman | Mrs. Burke | 1 |
| Ravil Isyanov | Russian Aide | 1 |
| Ronny Cox | Senator Joe Peck | 1 |
| Bruce Boxleitner | Tucker Hayes | 1 |
| D.W. Moffett | Mike Stanton | 1 |
| Carmen Argenziano | Hugh Moreland | 1 |
| Ric Young | Reporter #4 | 1 |
| Gina St. John | News Anchor | 1 |
| Gina St. John | Local News Anchor | 1 |
| Will Lyman | Teddy Bridges (uncredited) | 1 |
| James Shanklin | Gerry Levitt | 1 |
| James Eckhouse | Paul Vitagliano | 1 |
| Mike Binder | Evan Hutchins | 1 |
| Cheryl Francis Harrington | Woman at Airport | 1 |
| Gabriel Olds | Jeremy Dobris | 1 |
| William Allen Young | Senator Kevin Colby | 1 |
| Henry G. Sanders | Gavin Kester | 1 |
| Sumalee Montano | AF1 Reporter | 1 |
| Cristine Rose | Alice Marlow | 1 |
| James Handy | Bernard Hendrix | 1 |
| James MacDonald | Agent Bennett | 1 |
| Stephen Lee | Stephen Wilding | 1 |
| Bob McCracken | Walter Spaulding | 1 |
| Alex Paez | Carlos | 1 |
| Anne Marie Howard | Reporter Sharon | 1 |
| Kathleen Gati | Lucinda Wallace | 1 |
| Ismael 'East' Carlo | Congressman Ferrer | 1 |
| Jake Siegel | Kid #2 | 1 |
| Elizabeth Dennehy | Sue Brantley | 1 |
| Shireen Crutchfield | Staffer #2 | 1 |
| Gina Gallego | Dr. Larkin | 1 |
| Mel Fair | Caleb Kelban | 1 |
| Robert Harper | Owen Latimer | 1 |
| Jim Haynie | Bill Pasternak | 1 |
| Sandra Hess | Patya Kharkov | 1 |
| Rick Fitts | General Mitchell | 1 |
| Randy Oglesby | Bill Skinner | 1 |
| Sebastian Tillinger | Sergeant Denton | 1 |
| Hugh Dane | Older Black Man | 1 |
| David Gautreaux | Chairman | 1 |
| Shirley Jordan | Friend #1 | 1 |
| Glenn Walker Harris Jr. | News Anchor #2 (uncredited) | 1 |
| Scott Williamson | Ralph Dolan | 1 |
| James Edson | News Anchor | 1 |
| Edward Edwards | Hale Richardson | 1 |
| Kevin McCorkle | Captain Trenton | 1 |
| Joe O'Connor | Andrew McIntyre | 1 |
| Kim Estes | Senator Phelps | 1 |
| Montae Russell | Lewis Highsmith | 1 |
| Glenda Morgan Brown | Abigail Keaton | 1 |
| Danny Mora | Juan Duran | 1 |
| Kasan Butcher | Onlooker #1 | 1 |
| Daniel Hagen | Justice Talbot | 1 |
| Matt Kaminsky | Reporter #2 | 1 |
| Wendy Davis | Karen Patton | 1 |
| Jay Montalvo | Governor Antonio Solis | 1 |
| Linda Dona | Omaha Reporter #2 | 1 |
| Peter Breitmayer | Interrogator | 1 |
| Karen S. Gregan | Interviewer #2 | 1 |
| Elizabeth Payne | Teacher | 1 |
| Arthur Senzy | Agent Swift | 1 |
| Dig Wayne | Communications Tech | 1 |
| Anne Rutter | Woman | 1 |
| Phillip Jeanmarie | Student at Debate | 1 |
| Angela Martinez | News Anchor Angela | 1 |
| Homie Doroodian | Tariq Azam | 1 |
| Nick Roth | Omaha Reporter #1 | 1 |
| Debby Shively | Red Ranger Leader | 1 |
| Lucas N. Hall | French Diplomat | 1 |
| Alisha Gaddis | Diplomat's Wife | 1 |
| Ken Garito | Dr. Rucker | 1 |
| Dean Shelton | Sam Wilkins | 1 |
| Dean Shelton | Ricky | 1 |
| Kunal Sharma | A.J. | 1 |
| Micole Mercurio | Ilene Maxwell | 1 |
| David Warshofsky | Frank Terzano | 1 |
| Lu Parker | Stand-up Reporter #2 | 1 |
| Flynn Beck | Templeton's Aide | 1 |
| Rueben Grundy | Reporter #2 | 1 |
| Rueben Grundy | Reporter Duke | 1 |
| J. Kenneth Campbell | The Admiral | 1 |
| Tony Winters | Congressman (uncredited) | 1 |