| Tom Berenger | .... | Lieut. Gen. James Longstreet |
| Martin Sheen | .... | Gen. Robert E. Lee |
| Stephen Lang | .... | Maj. Gen. George E. Pickett |
| Richard Jordan | .... | Brig. Gen. Lewis A. Armistead |
| Andrew Prine | .... | Brig. Gen. Richard B. Garnett |
| Cooper Huckabee | .... | Henry T. Harrison |
| Patrick Gorman | .... | Maj. Gen. John Bell Hood |
| Bo Brinkman | .... | Maj. Walter H. Taylor |
| James Lancaster | .... | Lieut. Col. Arthur Fremantle |
| Morgan Sheppard | .... | Maj. Gen. Isaac R. Trimble |
| Morgan Sheppard | .... | Narrator |
| Kieran Mulroney | .... | Maj. G. Moxley Sorrel |
| Patrick Stuart | .... | Col. E. Porter Alexander |
| Tim Ruddy | .... | Maj. Charles Marshall |
| Royce D. Applegate | .... | Brig. Gen. James L. Kemper |
| Ivan Kane | .... | Cap. Thomas J. Goree |
| Warren Burton | .... | Maj. Gen. Henry Heth |
| MacIntyre Dixon | .... | Maj. Gen. Jubal A. Early |
| Joseph Fuqua | .... | Maj. Gen. J.E.B. Stuart |
| Tim Scott | .... | Lieut. Gen. Richard S. Ewell |
| George Lazenby | .... | Brig. Gen. J. Johnston Pettigrew |
| Alex Harvey | .... | Maj. Hawkins |
| Charles Lester Kinsolving | .... | Brig. Gen. Willilam Barksdale |
| Ted Kozlosky | .... | Confederate Lieutenant |
| Henry Atterbury | .... | Lee's Aide |
| Graham Winton | .... | Maj. Gen. Robert E. Rodes |
| Curtiss Bradford | .... | Another Officer |
| Daniel Chamblin | .... | Confederate Officer |
| Patrick Falci | .... | Lieut. Gen. Ambose Powell Hill |
| Greg Ginther | .... | Rodes' Courier |
| George Heffner | .... | Another Officer |
| Tom Landon | .... | Texas Soldier #2 |
| Michael Tennessee Lee | .... | Rebel Prisoner |
| Rick Leisenring | .... | Confederate Voice |
| Steve Leone | .... | An Officer |
| Tom Mays | .... | Early's Courier |
| Frank McGurgan | .... | Old Sergeant |
| Peter Miller | .... | Pender's Courier |
| Arnold Nisley | .... | Sergeant |
| Ted Rebich | .... | Dr. Cullen |
| Curtis Utz | .... | Texas Soldier #1 |
| C. George Werner | .... | Another Officer |
| Joe Ayer | .... | Banjo and Guitar Player |
| Eric Ayer | .... | Banjo and Guitar Player |
| Jeff Daniels | .... | Col. Joshua Lawrence Chamberlain |
| Sam Elliott | .... | Brig. Gen. John Buford |
| C. Thomas Howell | .... | Lieut. Thomas D. Chamberlain |
| Kevin Conway | .... | Sgt. 'Buster' Kilrain |
| Brian Mallon | .... | Maj. Gen. Winfield Scott Hancock |
| Buck Taylor | .... | Col. William Gamble |
| John Diehl | .... | Private Bucklin |
| Josh Mauer | .... | Col. James C. Rice |
| John Rothman | .... | Maj. Gen. John F. Reynolds |
| Richard Anderson | .... | Maj. Gen. George G. Meade |
| William Campbell | .... | Lieut. Pitzer |
| David Carpenter | .... | Col. Thomas C. Devin |
| Maxwell Caulfield | .... | Col. Strong Vincent |
| Donal Logue | .... | Capt. Ellis Spear |
| Dwier Brown | .... | Capt. Brewer |
| Herb Mitchell | .... | Sgt. Andrew J. Tozier |
| Emile O. Schmidt | .... | Brig. Gen. John Gibbon |
| Daniel Baumann | .... | Private #2 |
| Ken Burns | .... | Hancock's Aide |
| Michael Callahan | .... | Bearded Man |
| Scott Allan Campbell | .... | Capt. Atherton W. Clark |
| David Cole | .... | Buford's Aide |
| Mark Z. Danielewski | .... | Private |
| Brian Egen | .... | Cocky Lieutenant |
| Tom Fife | .... | 2nd Maine Man |
| David Fiske | .... | Courier |
| John Fitzpatrick | .... | Old 2nd Maine Man |
| Vee Gentile | .... | Private |
| Gary Gilmore | .... | Union Rider (Voice #1) |
| John Hadfield | .... | Vincent's Courier |
| John Heffron | .... | Sgt. Charles H. Veil |
| Con Horgan | .... | Officer #1 |
| Richard Kiester | .... | Devin's Aide |
| Matthew Letscher | .... | Young 2nd Maine Man |
| Robert Lucas | .... | Guard, 118th Pennsylvania |
| Reid MacLean | .... | Private Jim Merrill |
| Jonathan Maxwell | .... | Private Bill Merrill |
| Barry McEvoy | .... | 2nd Maine Soldier |
| Scott Mehaffey | .... | Lieutenant, Buford's Staff |
| Mark Moses | .... | Sgt. Owen |
| Russel Starlin | .... | Officer #2 |
| Leonard Termo | .... | Cpl. George F. Estabrook |
| Frank Moseley | .... | Soldier #1 20th Maine |
| Brian Resh | .... | Soldier #2 20th Maine |
| Lawrence Sangi | .... | Soldier #3 20th Maine |
| Michael Phillips | .... | Soldier #4 20th Maine |
| Adam Brandy | .... | Soldier #5 20th Maine |
| Sandy Mitchell | .... | Fiddle and Guitar Player |
| John Durant | .... | Fiddle and Guitar Player |
| Olivia Maxwell | .... | Taneytown Girl |
| Darryl Wharton | .... | Escaped Slave |
| unnamed brass band in Cashtown Scene | .... | Civil War brass band |
| Bill Chemerka | .... | Confederate soldier (uncredited) |
| Chris Dedman | .... | Signal Corpse Soldier (uncredited) |
| Ed DeLeo | .... | The Mayor (uncredited) |
| Michael Dickerson | .... | Soldier 187 PA Vol (uncredited) |
| Mark Falvo | .... | Union Soldier (uncredited) |
| Rami Rivera Frankl | .... | Rebel Soldier (uncredited) |
| Kevin R. Hershberger | .... | Confederate Soldier (uncredited) |
| Robert Lee Hodge | .... | Confederate Soldier (uncredited) |
| Alec Holmes | .... | Confederate Soldier (uncredited) |
| Jay Lance | .... | Confederate Soldier (uncredited) |
| Bruce Lindsay | .... | Confederate / Union Soldier (uncredited) |
| Chris Lindsay | .... | Drummer Boy (uncredited) |
| Andrew Megill | .... | Federal soldier / Confederate soldier (uncredited) |
| Shane Pinson | .... | Confederate Soldier (uncredited) |
| Benjamin Pitz | .... | Confederate Soldier-Pickett's Charge (uncredited) |
| Brian Pohanka | .... | Brig. Gen. Alexander Stewart Webb (uncredited) |
| Alejandro de Quesada | .... | Union Soldier (uncredited) |
| Ken DeSoto Ramoz | .... | Confederate Soldier (uncredited) |
| Ted Turner | .... | Col. Waller T. Patton (uncredited) |
| Greg van Wey | .... | Soldier (uncredited) |
| Andrew Zappone | .... | Confederate (uncredited) |