On another board, I saw a really good question. Could there really be identical cousins? I see it all the time on TV and movies, but can they really exist in real life?
Well, I don't see why not. It's probably not a very common occurrence, but I'm sure that most of us have at least one look-alike somewhere in the world. Of course, we hear a lot about people who get mistaken for celebrities. So it could happen, but it's probably somewhat uncommon.
I've done the identical cousins thing twice in my fics. In the Twins Universe, Marty Jr and Alex (formerly Calvin Jr) look alike. In the Almanac Universe, Marty Jr looks just like his twin cousins, Alex and Mike.
Are Griff and Bill both portrayed by Thomas Wilson? Or just Griff?
Both of them are. Bill looks much neater, though.
I wonder how Melody can stand to look at someone who looks like Griff. Then again, Bill's a really nice guy. So that makes up for it a lot.