I think his complexity is more potential than actual at the moment. They've foreshadowed that the way to defeat him is to save him from himself, meaning there's something more than this vengeful, power-hungry persona we're seeing. And to me, this character as written and acted is a lot LESS one-note than Terrence Stamp's Zod. Stamp's Zod was a megolomaniac. Nothing more, nothing less. And they never even bothered to give him a motive. I've enjoyed Smallville a lot more since the new showrunners took over. I agree with those who think "Red-Blue Blur" is ridiculous, though.