Fiona is a true South Side girl: she's scrappy, resourceful, and not afraid to get into a fight. As the sole provider for the Gallaghers, she takes on odd jobs (and demeaning ones, like sexy waitressing gigs) to provide for what her father's welfare checks won't cover. When she isn't juggling the responsibilities of her siblings or dealing with Frank's shenanigans, she's out partying with Veronica and Veronica's husband, Kev.

She has olive skin and dark brown eyes. Naturally slim and tall.