The dynamics of the Farmer family are really interesting. On the one hand, you've got parents who lied to their son for most of his life and a son who took to spying on his parents. On the other hand, you've got a family so loving that each member would do anything to protect the others. There have been many books written about orphans, but usually we know right from the beginning that the main character has lost his parents. In I Am the Cheese we think we are reading about the son of a loving family; only at the very end do we learn that his family is gone.
Adam is most like his mother.
Adam is most like his father.