Sophia

Picture it:

I'm watching a rerun of The Golden Girls- the one where Sophia marries Sal's old business partner, Max.

The guests at the wedding are all Elvis impersonators and watching this scene I remember that some famous person played one of those Elvises when they were unknown, but I couldn't remember who it was, and since most of them were wearing sunglasses I didn't think I'd be able to figure it out- then, I saw in the back row, without sunglasses, Quentin Tarentino.