Here's a pretty interesting looking morph of all of the modern actors who have played Bruce Wayne/Batman in live-action movies. I think it's safe to say that Christian Bale, with the most movies under his belt as the Dark Knight, is the definitive live action Bruce Wayne. But every actor that came before him - Adam West, Michael Keaton, Val Kilmer, George Clooney - have their fans and have left their mark on our consciousness of the character in some way. So could this be the perfect Bruce Wayne we're looking at here???
Oddly enough, all the live-action Batman actors rolled into one kind of resembles voice actor Kevin Conroy who over the last two and half decades has spent more time as the Caped Crusader than all other actors combined. Just add a touch of Steve Guttenberg around the eyes and you'll have a match.