Oh great, another character like a Disney mouse...

This is Sophia Scarlett, she lives in an orphanage, but is close friends with Iris' daughters.
(I've gotta remind my self to photoshop the flag in, instead of drawing a terrible version myself...)

--EDIT--

I changed this character by more than a mile: for one, her name is now Sophia Kennedy, formerly Atkinson due to her being adopted by Zoe Kennedy: Iris' sister.