Octavia-Selena Alexandru (born 8 October 2002) is a Romanian-British actress, singer, dancer, theatre performer and dancer. Alexandru has previously appeared in the Game of Thrones series, as well as EastEnders and Cartoonito Tales. She has also featured in films such as My Mother, My Bride and I and D'ora. She's also been a National Youth Theatre member since 2020 and a Spotlight Member since 2009, and has over years of experience in entertainment and media with areas of knowledge in performing arts for film, television, theatre, stage, modelling and photography. She's particularly skilled at dancing ballet, jazz, contemporary, belly dance and freestyle; gymnastics, athletics, fencing, parkour, kung fu, martial arts, weaponry and free running, as well as singing (opera, choral, a capella, soprano).
She was cast as Lara in the 2016 Assassin's Creed movie, although the character was later scrapped from the theatrical release of the film. Alexandru had already filmed several scenes, in April 2017 Alexandru uploaded her deleted scenes to her personal YouTube channel.