Matt Murdock - Uh, let's see....Don't make his costume so crappy. I hated the Affleck costume, the shade of red they used. Casting....well, I dunno, I think Sam Rockwell would be interesting. As for his origin....this is just part of what I've never liked about the character. Why does he need radiation crap getting sprayed in his eyes to have his superhuman senses? Real blind people have been known to have extremely acute hearing, touch, and smell. Plus, it would just make Daredevil
that much more badass if he actually did all of this without being exposed to some radioactive waste. Blind people already develop extrahuman senses without the help of radiation. And wasn't Stick blind? Was
he exposed to radioactive waste to make him a badass martial arts master? I know it would be a major change from the comics, but even Spider-Man has seen changes with things like webbing whem being adapted for the screen. I think blind people would be grateful if there was a blind superhero who fought crime without actually having acquired his superpowers from external means.