Guest Stars Josh Stewart as Sanford Conover Lili Taylor as Mary Todd Lincoln Spencer Treat Clark as Lewis Powell Anne Dudek as Ellen Stanton Larry Pine as William Henry Seward C.J. Hoff as Louis Weichman Daniel Croix as Joseph "Peanuts" Burroughs Co Starring Maxwell Korn as Robert Lincoln Carrie Lazar as Mrs. Mary Surratt Walker Babington as Edward "Ned" Spangler Tommie Turvey as George Atzerodt Carlos Luckie Jr. as William Bell Harrison Stone as Stanton's Doctor Rebecca Ray as Fanny Seward Chip Lane as Chief Security Guard Jason Kirkpatrick as Sgt. Silas Cobb Chris Mayers as Harry Hawks Joshua Bowman as Freddie Seward Kate Croonquist as Augusta Carrie Anne Hunt as Clara Harris Kathleen Hogan as Mrs. Mountchessin Davin Allen Grindstaff as Box Office Manager