Olive is still pretty young, so it's hard to tell what her personality is like.
As for Charlie, Bee says that he is stubborn like her, picky with her food like her, and doesn't sleep well like her. Then again, those are all pretty toddler-esque traits! So maybe that's not his true personality.
Here's one personality trait that's emerged: Charlie is what I call a "fake extrovert": extroverted when surrounded by friends, but introverted when around new people. That's just like both me and Mrs. Bee.
That's all I got... I can't wait to see his personality emerge more over time!
Whose personality does your LO have: yours or your SO?