Daniel Day Lewis as Abraham Lincoln.
Also in the film is David Strahairn who is playing Secy of State William Seward (the guy who gave us Alaska). He talks about the role HERE. GeneralUlysses S. Grant is played by Jared Harris. Yes, that's right, Lane Pryce from Mad Men will be chomping cigars and drinking whiskey enough to make Don Draper look like a lightweight. Take a read.