Earlier, I was thinking about how it's kind of tragic that Jon Hamm never got to play Batman. To me, he's practically tailor-made to play a comic accurate, suave, playboy Bruce Wayne, and the range he's shown from other roles of his, like in Baby Driver for example, shows he can bring the intensity needed when he has to play the part of Batman as well. He's a really good actor, he's got the right build for it, the right "intimidating glare" for when he's under the cowl, and even has the right voice for it. What sucks is that he's made some comments over the years where he alluded to at least being open to it if the opportunity ever arose. IMO a slam dunk of a casting that must have just never lined up for one reason or another. But sadly, Hamm's a bit too old now for what Gunn's DCU has been reported to be looking for in their new Bats, so it'll probably never come to be, at least not in live action.
What comes to mind for y'all when you think about an obvious casting choice in your mind that, for whatever reason, never came to be?