Maybe this gal?

http://img.thesun.co.uk/multimedia/archive/00468/benjamin_280_468042a.jpg
http://www.hotflick.net/flicks/2005_Harry_Potter_and_the_Goblet_of_Fire/Thumb/005HPG_Tiana_Benjamin_001.jpg
http://www.lumos.it/harry-potter-movie/attori/tiana-benjamin.htm
http://www.veritaserum.com/movies/actors/tianabenjamin.shtml

That's UK actress Tiana Benjamin, best known as Angelina Johnson (Fred Weasley's date for the Yule Ball) in "Harry Potter and the Goblet of Fire" and as Chelsea Fox in "Eastenders".

Not that she's worn this or anything like it in real life, but I would like her to wear the top, skirt, and high heels outfit seen at http://www.rosesims.org/clothes/roseclothes_11.htm

For her hair, I suggest the mesh seen at http://www.modthesims.info/download.php?t=236939