One rule. No listing main characters like Phineas, Ferb or Isabella. I am going to list the Fireside girls as a example. Up until "Isabella and the Temple of Sap", they seemed to have barely any personality but once that episode aired we learned things about them we never knew. For example Gingerhas a crush on Baljeet and is Stacy Hirano'slittle sister, Adyson is accident prone and tend to be very snarky at times, and Gretchen is the smartest member of the group.