How come in both movies she had only minor parts?
She didn't get lost in the forest with the rest of them and she didn't go to Paris with everyone else.
Why is that?
Good Question. Maybe The Pickles, The Finsters, and the Howards were not good enough friends to go on vacation with Susie's family.
shareI'll have to look back at the Susie episodes at some point, but I don't recall her being that fascinating of a character. A good straightman (er... girl), and someone nervy enough to put Angelica in her place, but (and this is all based on memories - my opinion could easily change after a refresh) her episodes seemed to be carried by the other characters. I don't think she would have added much to the movies, to be honest.
Besides, Susie was never really a principal character - just a recurring one.