- Hal Holbrook
- Â Abraham Lincoln 6 episodes, 1974-1976
- Sada Thompson
- Â Mary Todd Lincoln 5 episodes, 1974-1976
- Michael Cristofer
- Â John Nicolay 5 episodes, 1974-1976
- James Carroll Jordan
- Â Robert Lincoln 4 episodes, 1974-1976
- John Levin
- Â Tad Lincoln 4 episodes, 1974-1976
- Norman Burton
- Â General Ulysses S. Grant 3 episodes, 1975-1976
- Richard Dysart
- Â Judge David Davis 2 episodes, 1975-1976
- John Randolph
- Â Simon Cameron 2 episodes, 1975-1976
- Bert Freed
- Â Edwin Stanton / ... 2 episodes, 1975-1976
- Michael-James Wixted
- Â Willie Lincoln 2 episodes, 1974-1976
- Robert Foxworth
- Â Major John T. Stuart 1 episode, 1975
- Roy Poole
- Â Salmon P. Chase 1 episode, 1974
- Elizabeth Ashley
- Â Kate Chase Sprague 1 episode, 1975
- Catherine Burns
- Â Mary Owens 1 episode, 1975
- Ed Flanders
- Â General George C. McClellan 1 episode, 1975
- Beulah Bondi
- Â Sara Bush 1 episode, 1976
- John Beal
- Â Senator Fogelson 1 episode, 1974
- Lloyd Nolan
- Â William H. Seward 1 episode, 1975
- Roy Poole
- Â Salmon P. Chase 1 episode, 1975
- Severn Darden
- Â Gideon Welles 1 episode, 1975
- Walter McGinn
- Â Stephen Douglas 1 episode, 1975
- William LeMassena
- Â Senator Remley 1 episode, 1974
- Martine Bartlett
- Â Kitty Cavan 1 episode, 1975
- Whit Bissell
- Â William Seward 1 episode, 1976
- Davey Davison
- Â Emily Todd Helm 1 episode, 1974
- Paul Fix
- Â Judge Thomas 1 episode, 1975
- Edward Bell
- Â Frederick Seward 1 episode, 1976
- Melinda O. Fee
- Â Kate Chase 1 episode, 1974
- James Greene
- Â Henry B. Truett 1 episode, 1975
- Jack Collins
- Â Congressman Corey 1 episode, 1976
- Robert Emhardt
- Â General Winfield Scott 1 episode, 1975
- Gerald Hiken
- Â Prosecutor John D. Urquhart 1 episode, 1975
- Lee Bergere
- Â Billy Herndon 1 episode, 1976
- Dennis Fimple
- Â Private Yarrow 1 episode, 1976
- Michele Marsh
- Â Mary Todd 1 episode, 1975
- Frank Maxwell
- Â General Weitzel 1 episode, 1975
- Jon Cedar
- Â Captain 1 episode, 1975
- Robert Casper
- Â Leonard Swett 1 episode, 1976
- William Lanteau
- Â Mr. Richards 1 episode, 1974
- Booth Colman
- Â Senator Samuel C. Pomeroy 1 episode, 1975
- Brendan Dillon
- Â Allan Pinkerton 1 episode, 1975
- Iggie Wolfington
- Â William Butler 1 episode, 1975
- Peter Brocco
- Â Sec. William Dennison 1 episode, 1976
- Wally Engelhardt
- Â Ward Hill Lamon 1 episode, 1976
- John Davis Chandler
- Â Assassin 1 episode, 1975
- Charles Macaulay
- Â Jay Cooke 1 episode, 1975
- Douglas Henderson
- Â Norman B. Judd 1 episode, 1976
- John Kennedy
- Â Cabinet Member 1 episode, 1976
- Jon Lormer
- Â Senator Sutton 1 episode, 1974
- Bartlett Robinson
- Â Bewhiskered Senator 1 episode, 1975
- David Hayward
- Â Celebrating Soldier 1 episode, 1976
- Anne Seymour
- Â Mrs. Livingston 1 episode, 1974
- Ron Hajak
- Â Cavalry Man 1 episode, 1975
- Gene Tyburn
- Â Francis Bicknell Carpenter 1 episode, 1975
- Peter Hobbs
- Â Congressman 1 episode, 1975
- Bill Quinn
- Â Illinois Rep. George Ashmun 1 episode, 1976
- Doug Roberts
- Â Map Finding Yankee Soldier 1 episode, 1976
- Mark Montgomery
- Â Lincoln Messenger 1 episode, 1976
- David Huffman
- Â Ellmer Ellsworth unknown episodes
- Patrick Cranshaw
- Â Simon Mumford (uncredited) 1 episode, 1974
- Felix Silla
- Â General Tom Thumb (uncredited) 1 episode, 1974
- Cosmo Sardo
- Â White House Party Guest (uncredited) 1 episode, 1974
- Jim Boles
- Â Guard (uncredited) 1 episode, 1974
- Nelson Welch
- Â Dr. Wallingford (uncredited) 1 episode, 1974
- Herb Vigran
- Â Well Wisher in Line (uncredited) 1 episode, 1975
- George 'Buck' Flower
- Â Juror (uncredited) 1 episode, 1975
- Len Wayland
- Â Military Aide (uncredited) 1 episode, 1975
- Gail Bonney
- Â Courtroom Spectator (uncredited) 1 episode, 1975
- Paul Genge
- Â Lead Conspirator (uncredited) 1 episode, 1975
- Jeffrey Sayre
- Â Train Passenger (uncredited) 1 episode, 1975
- Arthur Tovey
- Â Cabinet Member (uncredited) 1 episode, 1975
- Stacy Keach
- Â Politician (uncredited) 1 episode, 1976
- Robert Cornthwaite
- Â Draper (uncredited) 1 episode, 1976
- Robert Brubaker
- Â Hawkins (uncredited) 1 episode, 1976
- Byron Morrow
- Â Thurlow Weed (uncredited) 1 episode, 1976
- Richard Collier
- Â Bald Marcher (uncredited) 1 episode, 1976
- Owen Bush
- Â Well Wisher (uncredited) 1 episode, 1976
- Dick Winslow
- Â Hand Shaker (uncredited) 1 episode, 1976
- Ed Bakey
- Â Citizen with Knife (uncredited) 1 episode, 1976
- Chester Jones
- Â White House Butler (uncredited) 1 episode, 1976
- Martin Ashe
- Â Pennsylvania Representative (uncredited) 1 episode, 1976
