Met Doohan once, at a trade show. Got maybe an extra 10 seconds with him because I had the autographed promo sheet made out to a nephew whose name is in the Scottish Play...
I met him at one of the last DragonCons he was at.
My memory is a little fuzzy but I think I spoke to him just a few seconds and shook his hand.
Very likeable fellow.
Shatner has always been a mixed bag to me.