Felicity Jones as Clancy Goshawk
Clancy Goshawk is a clean-cut Ravenclaw prefect in the same year as the Marauders. She is dating Charlie Plex at the beginning of seventh year but they break up after Marlene Price informs her that he has been cheating on her with Shelley Mumps . She has a flirtatious relationship with Remus Lupin .