I see this as irrefutable evidence that both he is and everything on the internet is true.
Correct me if I'm wrong.
Below is an actual picture of a Tennessee man from the 1870s, its currently on ebay here with the title "Nicolas Cage is a Vampire". Screenshot here if the auction ends before you get a chance to see it.
You've got to admit, the resemblance is uncanny, and he does have a certain "vampire vibe". Plus didn't he already play somebody undead in a terrible movie and he doesn't even go by his real name? Seems suspect to me.
Source -> http://www.thesun.co.uk/sol/homepage/news/3820846/Proof-Nicolas-Cage-is-vampire.html?OTC-RSS&ATTR=News