On 20 September, a number of people important to the production of Doctor Who and its spin-offs either died or were born.
- 1921 - Visual effects designer Jack Kine was born.
- 1925 - Producer John Wiles was born.
- 1925 - Director Christopher Barry was born.
- 1955 - Actor David Haig was born.
- 1969 - Actor Mina Anwar was born.
- 1986 - Writer and script editor Dennis Spooner died.
- 1993 - Actor Salvin Stewart died.
- 1997 - Actor Roy Pattison died.
- 2000 - Director Mary Ridge died.
- 2009 - Actor Kenneth Seeger died.