I love Cranston but i'm sure a lot of people are just bringing him up due to the bald thing he has experience with (easier to manip right?).
Cranston for Jim Gordon.
And also the presence to play someone like Luthor...
Very believable for the part of someone whos a billionaire tycoon who has fooled the world.
For the longest time I wanted Vincent D'Onofrio for the part, but I think that time has passed.