On 20 April, a number of people important to the production of Doctor Who and its spin-offs either died or were born.
- 1924 - Actor Leslie Phillips was born.
- 1939 - Actor Ray Brooks was born.
- 1945 - Actor Michael Brandon was born.
- 1945 - Actor Jimmy Winston was born.
- 1951 - Actor Louise Jameson was born.
- 1955 - Actor Andrew Forbes was born.
- 1958 - Actor William Ilkley was born.
- 1973 - Actor Barbara Bruce died.
- 1974 - Actor and writer Dan Barratt was born.
- 2015 - Actor Peter Howell died.