Series 14 Update
The BBC has revealed that Jemma Redgrave will be returning to the cast of Doctor Who as Kate Lethbridge-Stewart in the next series currently being filmed in Wales.
Redgrave has played the character, the daughter of Doctor Who legend Brigadier Alistair Lethbridge Stewart, in 9 previous episodes of Doctor Who, playing opposite the last three Doctors.
She is the daughter of the actor Corin Redgrave and has a long career in film and television as well as on the stage.
Also joining the series is the actor Aneurin Barnard.
Barnard is a welsh actor best known for playing Davey in the film Hunky Dory, and Claude in the American thriller drama The Truth About Emanuel. He played the husband of Cilla Black, Bobby Willis, in the biopic about the star's life and Tim in Thirteen, as well as the murderous King Richard III in The White Queen.
In Doctor Who he will be playing the character of Roger ap Gwilliam
The eight-part series staring Ncuti Gatwa as the fifteenth Doctor will be broadcast next year on BBC One in the UK and streamed worldwide on Disney +