I love to do voiceover because, for me, if you know what you're doing, it's simple. No makeup, no costuming, none of the baloney. None of the egos - you don't have to deal with all that crap. I love voiceovers.
There was a time when 'Batman' really kept me from getting some pretty good roles, and I was asked to do what I figured were important features. However, Batman was there, and very few people would take a chance on me walking onto the screen. And they'd be taking people away from the story.
Not to be able to move around or do things without thinking - that's tough. I may end up that way, but if I do, I hope to hell my intellect will take over, and I'll find some kind of joy and a way to contribute.