One thing I've noticed in all the years I've watched this show is they actually cast the families and babies to look related. Most shows think people won't pay attention and they'll give two blue eyed blonde haired people a brown hair brown eyed baby or something. That baby looks just like Sharon. All the babies they've used so far look either like Sharon or Keanu. Denny was the perfect mix of Sharon and Dennis too. Zoe looked just like Kat. Ronnie and Roxy looked like they could actually be related. Amy looks like Roxy and Jack. I just love the attention to detail because it makes it feel way more real.