Might I have seen a "freak show" of some kind, as a child in the mid-50's?

I saw him giving a talk at the Underbelly festival on the South Bank in London about 10 years ago. About 20 years ago he was part of the entertainment at our Christmas party. I’m normally no good at remembering people, but he’s got one of those faces you just don’t forget!

I’m envious. The only time I’ve ‘seen’ him is on the X-Files. He is amazingly memorable, and not just for the mods.