If Nolan did the Riddler, he'd probably cast someone we'd least suspect.
like Jim Carey!
Nolan: "now Jim, I want you to patch in to your inner Edward Nigma again. Just reel it back a little. Oh bugga, scratch that. Like alot. Can you do that for me please?"
Carey: "Yes"
Nolan: "Good, now ACTION!"
Carey: "Riddle me this! Riddle me...."
Nolan: "Oh bloody hell! <facepalm> CUT! CUT! CUT!"
Honestly, I think Carrey could do a good "serious" Riddler with the right direction. Given the time when BF came out, Carrey was still on fire from his Ace Ventura and Mask films. Having him go all Frank Gorshin seemed to be a no-brainer. Since then, Carrey has shown range in his acting. With a director like Nolan, I think Carrey could pull of a top-notch job.
Not saying it should happen, mind you.
