| Tol Avery | ... | William Jennings Bryan | |
| Johnny Bangert | |||
| Sidney Blackmer | ... | Oscar W. Underwood | |
| Lamont Johnson | |||
| Victor Jory | ... | Charles Carlin | |
| Brian Keith | ... | Sen. Thomas Hart Benton | |
| Woodrow Parfrey | ... | Governor William Brandon |
| Rae Allen | ... | Miss Darvon | |
| Audrey Christie | ... | Mrs. McDowell | |
| Rosemary Harris | ... | Mary S. McDowell | |
| George Mitchell | ... | Mr. Broomell | |
| Woodrow Parfrey | ... | Principal Ralston | |
| Albert Salmi | ... | Mr. Schneider | |
| Katherine Squire | ... | Mrs. Simpson | |
| Frances Sternhagen | ... | Miss Koeller | |
| Ralph Williams | ... | Fred Simpson | |
| Jason Wingreen | ... | Reporter |
| Russell Collins | ... | Foote | |
| Lamont Johnson | ... | Fremont | |
| Brian Keith | ... | Thomas Hart Benton | |
| Geraldine McEwan | ... | Jesse | |
| Carl Benton Reid | ... | Calhoun | |
| Jason Wingreen | ... | Hanson | |
| Meg Wyllie | ... | Eliza |
| Edward Asner | ... | Oliver E. Wells | |
| Marsha Hunt | ... | Mrs. Ely | |
| Leonard Nimoy | ... | Burr Jones | |
| Dan O'Herlihy | ... | Professor Richard T. Ely | |
| Ford Rainey | ... | Bird | |
| Christopher Riordan | ... | Soldier | |
| Karl Swenson | ... | Chynoweth |
| J.D. Cannon | ... | Sam Houston | |
| John Hoyt | ... | Doc | |
| Noah Keen | ... | Throckmorton | |
| Peggy McCay | ... | Margaret | |
| Slim Pickens | ... | Rogers | |
| Christopher Riordan | ... | Wounded Soldier | |
| Warren Stevens | ... | Lt. Gov. Edward Clark |
| Walter Matthau | ... | Gov. John Slaton | |
| Alan Baxter | ... | Traine | |
| Whit Bissell | ... | Myles | |
| Michael Constantine | ... | Watson | |
| Anthony Costello | ... | Burley | |
| Betsy Jones-Moreland | ... | Sally | |
| Frank Marth | ... | Grant |
| Russell Collins | ... | Adams Sr. | |
| Paul Comi | ... | Samuel Quincy | |
| Jeff Cooper | ... | Killroy | |
| Phyllis Love | ... | Abigail Adams | |
| Gene Lyons | ... | Samuel Adams | |
| David McCallum | ... | John Adams | |
| Andrew Prine | ... | Josiah Quincy | |
| Torin Thatcher | ... | Sewall |
| Lou Frizzell | ... | Jensen | |
| George Furth | ... | Stanley | |
| Steve Ihnat | ... | Tom Smith | |
| Louise Lorimer | ... | Martha | |
| David Opatoshu | ... | Professor Goldman | |
| Sue Randall | ... | Joan | |
| Loring Smith | ... | Jensen | |
| Lee Tracy | ... | Senator Robert A. Taft |
| Wendy Hiller | ... | Anne Hutchinson | |
| Arthur Gould-Porter | |||
| Neil Hamilton | ... | Gov. Winthrop | |
| Donald Harron | ... | Cotton | |
| Michael Pate | ... | Wilson | |
| Rhys Williams | ... | Hutchinson |
| James T. Callahan | ... | Barnes (as James Callahan) | |
| Don Collier | ... | Kinkle | |
| Michael Constantine | |||
| Robert Emhardt | ... | Governor Lilburn Boggs | |
| Peter Lawford | ... | Gen. Alexander Doniphan | |
| George Lindsey | ... | Black | |
| Tim O'Connor | ... | Rigdon | |
| Simon Oakland | ... | Captain Bogart | |
| Paul Stevens | ... | Smith |
| Roy Barcroft | ... | Judge | |
| John Cassavetes | ... | Parsons | |
| John Kerr | ... | Whitlock | |
| Burgess Meredith | ... | John Peter Altgeld | |
| Milton Selzer | ... | Schilling | |
| Howard St. John | ... | Hinrichsen |
| Robert Hooks | ... | Frederick Douglass | |
| Claudia McNeil | ... | Mrs. Haines | |
| Frederick O'Neal | ... | Haines | |
| Alfred Ryder | ... | Garrison | |
| Harry Townes | ... | Coffin |
| Martine Bartlett | ... | Caroline | |
| Booth Colman | ... | Emerson | |
| Martin Gabel | ... | Daniel Webster | |
| Sandy Kenyon | ... | Webster | |
| Carl Benton Reid | ... | Calhoun | |
| Robert F. Simon | ... | Clay |
| Gloria Calomee | ... | Sarah Harris | |
| King Donovan | ... | Rev. Mr. May | |
| John Ericson | ... | Calvin Pilleo | |
| Joel Fluellen | ... | Harris | |
| Bonnie Franklin | ... | Deborah | |
| Dabbs Greer | ... | Dr. Fenner | |
| Ena Hartman | ... | Ann Eliza Hammond | |
| Ken Lynch | ... | Purdy | |
| Janice Rule | ... | Prudence Crandall | |
| Jean Sewell | ... | Maria | |
| Robert F. Simon | ... | Andrew Judson |
| John Abbott | ... | Senator Wigfall | |
| Sheldon Allman | ... | Man in Crowd | |
| Timothy Carey | ... | Hartwick | |
| Conlan Carter | ... | Robert Johnson | |
| Linden Chiles | ... | Tom Nelson | |
| Gene Darfler | ... | Cole | |
| Ted de Corsia | ... | General Ramsey | |
| Paul Fix | ... | William Brownlow | |
| Byron Foulger | ... | Mr. Bernard | |
| I. Stanford Jolley | ... | Man in Crowd | |
| Charles Kuenstle | ... | John Brownlow | |
| Walter Matthau | ... | Andrew Johnson | |
| Neil Rosso | ... | Thin Man | |
| Alfred Ryder | ... | Senator Nicholson | |
| Joan Tompkins | ... | Eliza Johnson |
| Harry Bellaver | |||
| Kevin Hagen | |||
| Strother Martin | |||
| Kent Smith | ... | Charles Evans Hughes |
| Herschel Bernardi | |||
| Cyril Delevanti | |||
| Bradford Dillman | ... | Edmund G. Ross | |
| Barry Morse | |||
| Simon Oakland | ... | Fuller | |
| James Westerfield |
| Tom Bosley | |||
| Peter Hobbs | |||
| George Mitchell | |||
| Torin Thatcher | |||
| Dan Tobin | |||
| Herb Voland | (as Herbert Voland) | ||
| Peter Whitney |
| Barbara Feldon | ... | Frances Cleveland | |
| Paul Lambert | |||
| George Macready | |||
| Carroll O'Connor | ... | Grover Cleveland |
| Parley Baer | ... | Hillhouse | |
| William Beckley | ... | Lieutenant Locke | |
| Douglas Campbell | ... | John Quincy Adams | |
| Robert Fortier | ... | Meriwether Lewis | |
| Alan Hewitt | ... | Thomas Jefferson | |
| Laurence Naismith | ... | John Adams | |
| Richard O'Brien | ... | Commodore Barron | |
| Willard Sage | ... | Ambassador Sage | |
| Orville Sherman | ... | Bowen | |
| Nancy Wickwire | ... | Louisa Adams | |
| Roland Winters | ... | Pickering |
| Booth Colman | |||
| Christopher Dark | |||
| Dabbs Greer | ... | Taylor | |
| Alan Hewitt | |||
| Murray Matheson | |||
| Gary Merrill | ... | John Marshall |
| George Grizzard | ... | Judge Ben B. Lindsey | |
| Edith Atwater | |||
| David Brian | |||
| John Crawford | |||
| Joseph Ruskin |
| Wesley Addy | ... | Hellinger | |
| William Bakewell | ... | Wythe | |
| John Colicos | ... | Patrick Henry | |
| Arthur Franz | ... | James Madison | |
| John Graham | ... | Thomas Mathews | |
| Donald Harron | ... | Governor Randolph | |
| Laurence Naismith | ... | George Mason | |
| John Raglin | ... | Wheeler | |
| Herb Voland | ... | Peckham (as Herbert Voland) |
| George Rose | ... | Sen. Thomas Corwin | |
| John Colicos | ... | Sen. Davis | |
| John Howard | ... | Sen. Crittenden | |
| Lester Rawlins | ... | Daniel Webster | |
| H.M. Wynant |
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