Tasya Vos is a fictional character from the 2020 science fiction film Possessor, directed by Brandon Cronenberg. She works as an assassin who uses advanced technology to take control of other people's bodies, allowing her to carry out her missions without being detected. Throughout the film, Tasya struggles with her identity and the psychological effects of her work. As she inhabits the bodies of her targets, she faces challenges that blur the lines between her own consciousness and that of the individuals she possesses.