The Doctor Who Production Diary: 2021

January
1 The BBC announces that John Bishop will play new companion Dan Lewis in Doctor Who Dan Lewis
1 Debut broadcast of Revolution Of The Daleks on BBC One and BBC One HD Revolution Of The Daleks

February

March

April
12 Death of Stuart McDonald (bio), director
27 Death of Frank Cox (bio), director

May

June
7 Death of Jackie Lane (bio), who played Dodo Chaplet

July
29 The BBC announces that Jodie Whittaker and Chris Chibnall will leave Doctor Who in a feature-length special -- ultimately The Power Of The Doctor -- which will form part of the BBC's centenary in 2022 The Thirteenth Doctor

August

September
24 The BBC announces that Russell T Davies will return to the post of Doctor Who's executive producer and showrunner, following the end of Chris Chibnall's tenure The Fourteenth Doctor

October
31 Debut broadcast of Flux episode one, The Halloween Apocalypse, on BBC One and BBC One HD Flux

November
7 Debut broadcast of Flux episode two, War Of The Sontarans, on BBC One and BBC One HD Flux
14 Debut broadcast of Flux episode three, Once, Upon Time, on BBC One and BBC One HD Flux
21 Debut broadcast of Flux episode four, Village Of The Angels, on BBC One and BBC One HD Flux
28 Debut broadcast of Flux episode five, Survivors Of The Flux, on BBC One and BBC One HD Flux

December
5 Debut broadcast of Flux episode six, The Vanquishers, on BBC One and BBC One HD Flux