Klári Tolnai is a professional Film and Theatre actress, based in Budapest, Hungary. She was nominated for Best Actress in a Leading Role at the Asti International Film Festival for her performance in Stifled. (2021) Klári also co-wrote of 'Stifled' which nominated for Best Short Film at Oscar-Qualifying Rhode Island International Film Festival. (2022) She played Tabitha in Shadow and Bone (2021), Ruth in The Alienist (2018) however, the act that brought her widespread attention was her role in the Netflix series, The Last Kingdom (2017-2022), where she played Sidgeflead, Sihtric's wife. In the meantime, she was also busy working on Hungarian productions, she played in several movies and tv series. In 2022, released of the psychological thriller called 'A Karantén Zóna' (The Quarantine Zone) on HBO and HBO Max, where she played Panni, one of the main characters.