Jemma Rebecca Redgrave is a fourth-generation English actress of the Redgrave family. Born in London, she is the daughter of the actor Corin Redgrave and his first wife, Deirdre Hamilton-Hill, a former fashion model. They divorced when Jemma was nine. She has a brother, Luke Redgrave, who is a camera operator, and two half-brothers, Arden and Harvey Redgrave. Her mother died in 1997 and her father died in 2010.
She is the niece of actresses Vanessa Redgrave and Lynn Redgrave and cousin of Joely Richardson, Carlo Nero and Natasha Richardson.
She appeared as Kate Stewart (formerly played by Beverley Cressman in the two videos Downtime and Dæmos Rising), the daughter of The Brigadier (Lethbridge-Stewart), in “The Power of Three” episode of Doctor Who in 2012 and reprised the role a year later in the 50th anniversary episode “The Day of the Doctor”; and she returned to the role of Kate Stewart in the Doctor Who (series 8) finale “Death in Heaven”, and in the 2015 episodes “The Magician’s Apprentice”, “The Zygon Invasion” and “The Zygon Inversion”.
She joined the cast of BBC medical drama Holby City as army medic Major Berenice (Bernie) Wolfe. After appearing in 59 episodes, Redgrave left the show in August 2017. It has, however, been intimated by producers of the show that she may return at some point in the future. Jemma was revealed to be returning to Holby City on 6 February 2018 with her due to start work in March for a month long filming schedule.