Ernest Borgnine would've made a great 2nd Doctor. I'd have picked Christopher Lloyd for 6 if in this fictional universe, Back to the Future had never been made. And George Clooney for 8. He was the 90s TV prettyboy after all, and I could imagine him filming a TV movie that went nowhere back then. I'd also pick Kiefer Sutherland for 9 and the series revival.