Michael McKean has a very intersteing Bio on IMDb. His dad worked for RCA & was one of the founders of Decca records. His drama teacher at NYU was Olympia Dukakis. And his ancestor Thomas McKean signed the Declaration of Independence.
About 10 years ago I was at LAX waiting for flight back to Oakland. Michael McKean was sitting in the waiting area for that same flight, reading a trade newspaper called "Zoetrope." It was definitely him, but I didn't bother him and it didn't seem anyone else recognized him.
One of my very favorite actors--even without the Spinal Tap connection. He's such a chameleon--he can assume all sorts of characters. One of my very favorites was a guest role he had on
The X Files where his character switched bodies with Mulder. He was both dispicable and totally hilarious all at once. One of the most creative scripts I can recall on that series, and that's saying a lot.