I always saw Kingsley as more James Spader. Don't know why. But Lithgow would make a great Norman Osborn. One moment he's Harry's dad, fun-loving father figure, the next he's this cackling freak in green, still kinda funny but, you know, trying to kill people, then, bridge scene, holy fuck Trinity.

Anyone who has menaced both Sylvester Stallone and Buckaroo Banzai is a good choice to give Spidey a run for his money.