You forgot Adam West who played the Gray Ghost.
I actually like this series more than The Batman (the new Batman cartoon that airs in CN). And Kevin Conroy is the definitive Batman voice IMHO. Everytime I read a Batman comic, I hear Kevin's deep growl in my head. Alas, Im not gonna double dip on this since I just completed volumes 1-4. It's on sale for a few weeks now for 599/volume.