Tricia Janine Helfer is a Canadian actress and former model. She is best known for playing the Cylon model Number Six in Ronald D. Moore's re-imagined Battlestar Galactica series (2004–2009) and voicing Sarah Kerrigan in StarCraft II and its expansion packs (2010–2015). She played Charlotte Richards/the Goddess of All Creation on the FOX series Lucifer (2016–2018).
