In this season, we will cast actors for characters who wI'll be both young and extremely old without changing much physically. They'll just look more wise. Now that might be a small problem. A different and perhaps bigger problem is that the children of certain characters will be as physically mature as their parents. How do we help viewers understand the age differences? Could casting be one answer? If elves are represented by actors and actresses between ages 20 and 50, it would be simplest to cast the older actors as first generation elves and go for slightly younger for the second generation and so on. But on the other hand, some of the younger elves are going to live in the frame, and wouldn't they look more mature than the oldest elves in the Firts Age?