Who is the girl on The Hunger Games Catching Fire (2013)?

The Hunger Games: Catching Fire is a 2013 American dystopian action film directed by Francis Lawrence from a screenplay by Simon Beaufoy and Michael deBruyn, based on the 2009 novel Catching Fire by Suzanne Collins. The sequel to The Hunger Games (2012), it is the second installment in The Hunger Games film series. The film stars Jennifer Lawrence, Josh Hutcherson, Liam Hemsworth, Woody Harrelson, Elizabeth Banks, Lenny Kravitz, Philip Seymour Hoffman, Jeffrey Wright, Stanley Tucci, and Donald Sutherland. In the film, Katniss Everdeen (Lawrence) and Peeta Mellark (Hutcherson) become targets of the Capitol after their victory in the Games inspire uprisings in Panem.

Who is in it?