A number of years ago - sometime between 2005 and 2007 - I was working at my newspaper job one day, and I covered an event at a local Rotary Club. It featured a recap of a trip club members made on an exchange with a club in South America.
It was to Uruguay or Paraguay - I don't remember which - and in the course of the report, the club leader mentioned - by way of "It's a small world" - that one of their host club members was William Shatner's brother, Louis Shatner. He had the photo to prove it - the fellow looked just like Bill.
I later checked up on the story, and found that Bill Shatner doesn't have a brother, but he had an uncle named Louis. This fellow in South America is probably his first cousin. I assume the Rotarian either misspoke or didn't understand the translation.
Like I said, the family resemblance was striking.