Henry Winkler...?
Well, he's currently showing in a kids TV show called Hank Zipzer on the BBC in the UK. He plays a 60's throwback, but cool 'down with the kids' kinda teacher. It's pretty decent TV as you'd expect from the BBC.
(https://www.happyatheistforum.com/forum/proxy.php?request=http%3A%2F%2Fwww.comedy.co.uk%2Fimages%2Flibrary%2Fcomedies%2F300%2Fh%2Fhank_zipzer.jpg&hash=605779d95df5ce626731278060ceeeb3b5ddebc6)
Also, whatever happened to George from Rainbow?
(https://www.happyatheistforum.com/forum/proxy.php?request=http%3A%2F%2Fi.dailymail.co.uk%2Fi%2Fpix%2F2015%2F01%2F05%2F246BDECA00000578-0-Rainbow_Bungle_Zippy_George_and_Geoffrey_Hayes-a-72_1420446715595.jpg&hash=936c367cb389eb477ad926fc4cc9b6fa744289e2)
About 10 years ago, he was my cabbie to the airport from Mrs Siz's flat. Hard times...!
Have you seen anyone who's been off the public scene for a while?
I think Winkler has been hocking reverse mortgages here in the states. They hand out giant piles of money and you never have to make a payment...
Henry Winkler has also been on Adult Swim in Children's Hospital.