WARNING: This article contains minor spoilers for Doctor Who Series 9.
Actress Sophie Stone has been cast in Series 9 of Doctor Who.
According to her Spotlight profile, Stone will be appearing as the character Cass in either one or both episodes directed by Daniel O'Hara for the upcoming series.
Stone was the first deaf person to study at the Royal Academy of Dramatic Arts (RADA), and has since performed on stage with companies including the National Theatre and Deafinitely Theatre. Stone has also appeared in television shows including the BBC's Casualty, Holby City and Mapp & Lucia as well as ITV mini-series Marchlands.
Series 9 of Doctor Who began filming in Cardiff earlier this month, and is due to air later in the year on BBC One.