On 21 December, a number of people important to the production of Doctor Who and its spin-offs either died or were born.
- 1915 - Actor James Cairncross was born.
- 1937 - Actor Sheila Reid was born.
- 1945 - Actor Alibe Parsons was born.
- 1950 - Actor Jane How was born.
- 1968 - Actor Catherine Cusack was born.
- 1982 - Actor Edmund Bailey died.
- 1989 - Actor Edmund Warwick died.
- 1991 - Actor Colin Douglas died.
- 1998 - Actor Roger Avon died.
- 1999 - Actor Jack Le White died.
- 1999 - Actor John Arnatt died.
- 2000 - Actor John Lee died.
- 2001 - Dalek operator Kevin Manser died.
- 2012 - Actor Daphne Oxenford died.