Evanna Lynch As Luna Lovegood
Evanna Lynch, unlike the other Harry Potter actors, had no prior acting experience when she was cast as Luna Lovegood in the final four films. Following the completion of the films, the Irish actress appeared in My Name Is Emily, Danny, and Madness in the Method.
Gary Oldman As Sirius Black
Gary Oldman portrayed Sirius Black, a fearful wizard with a tormented past as a result of his time in Azkaban, the wizarding prison. He has appeared in over 50 films. No one knows what Gary Oldman looks like because he’s so skilled at changing his appearance to match the character he’s playing. His villainous roles in True Romance, The Fifth Element, Air Force One, The Contender, and Léon: The Professional are notable examples. Can we add Sirius Black to that list?