I always thought that Caroline aged so beautifully! She had such a wholesome beauty and that never seemed to go away as the years progressed, which is unusual in long-running tv shows. Charles also aged well, although I find it amusing that in the 4th season (I think it was the "Whisper County" episode), he had pretty graying hair, which miraculously disappeared in later episodes! Melissa Sue Anderson (Mary) must have gotten a late-70s perm because it was a little frizzy around the 4th season, not to mention that her shade was a lighter blonde (very common in the late 70s...may have been that product "Sun In," LOL!). Laura was such a cute little girl and went through an awkward stage around 14 (who doesn't?), where she was still in pigtails yet getting too old for them. She eventually started wearing makeup and letting her hair down, but I think she looked way better with all that makeup!