It's amazing how you uncover just a bit more depth to Calvin and Hobbes every single time you read it. Reading it once again recently, I began to really see the subtle depth written into his parents.

They're generally seen from Calvin's perspective: super old, crabby, out of touch. But then you realize that's just how a 6 year old sees them, and that there's a lot more to their characters. They're likely only in their early 30's, and are honestly doing their best job as parents. There are all sorts of little hints towards how much they love their son (even though he can drive them crazy), their fears, their hobbies and interests outside of parenting, their relationship, etc. It's really beautiful.