I kind of see what you’re saying, but I don’t think the resemblance is all that striking - it’s interesting, because I think this sort of thing shows that different people look at different things in people’s faces, so one person can consider two others very much alike, while another observer can’t see it.
You’re kidding. One has a voice worse than nails raking down a chalkboard that is falling onto a shrieking cat and the other is Tyler Florence.
I also don’t think any of the guys in the OP look that much alike (to me at least), maybe Gibson and Eads a little bit - but the other two look very, very different to me.
The worst offender I’ve ever seen, though was the show Brooklyn South. There there were about 8 primary or secondary characters who were all dark-haired, white guys with approximately the same build and they were all beat cops, so they were in uniform and dressed identically, too. I lasted through two episodes of not being able to tell anyone apart before I gave up.