2. Bill Nighy
An older Doctor goes up against an even older Master. But this Master is a stone cold killer. And even though Nighy has an incredibly diverse background and can be very funny, I think that dark, wicked sense of humor combined with the motivation of destroying the Doctor and controlling the Universe you've got a recipe for wonderfully epic disaster. I love Bill Nighy more than I love most things. More than I love cats. And the idea of him as the Master is enough to make me soil myself. And it would be so worth it. The man is a legend in my book and there hasn't been a single role in which I thought to myself, "Boy, Bill was really miscast here." Simply stated, he knocks it out of the park no matter the film or the part. Even in films like I, Frankenstein and Underworld: Rise of the Lycans you might think, "Man what wasted films. But hey, Bill Nighy was awesome and I wish he would give me a hug and tell him I make him proud." His brief part in Vincent and the Doctor got us all excited to see our uncle Bill in the Who-niverse. But his time on screen was so brief it was a little heartbreaking. Having him face off against the Doctor, imagining him piloting his own Tardis and blowing up planets and laughing at the Doctor and just being Bill Nighy as the Master is the greatest idea anyone could ever have. Time to put on fresh underpants.