Regina would have to be black pepper! Or perhaps red chile, since she sometimes wears red (I was tempted to say green chile since that is my favorite, but red and black seem to be Regina’s colors.)
If Neal is a bowl and Emma is soup, Henry could be crackers in the soup or perhaps a spoon.
Pinocchio must be a wooden spoon!
I thin Archie would be a measuring cup, since as a conscience he helps calibrate others.