Patil Sisters

In the Harry Potter books, Parvati Patil of Gryffindor has an identical twin Padma Patil of Ravenclaw, to illustrate the unpredictability of the Sorting Hat. In the movies, however, Parvati (Shefali Chowdhury) and Padma (Afshan Azad) are not only both in Gryffindor but are played, surprisingly, by unrelated actresses.