| Timeline for 1920 |
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In 1920, a number of people important to the production of Doctor Who and its spin-offs either died or were born. Sometime this year, costume designer Joan Ellacott was born. People with known 1920 birthdays included:
- 3 January - Actor Peter Stephens was born.
- 9 January - Actor Clive Dunn was born.
- 11 January - Actor Derek Sydney was born.
- 20 January - Dalek operator Robert Jewell was born.
- 23 January - Actor Steven Scott was born.
- 25 January - Actor Reginald Barratt was born.
- 8 February - Actor Reginald Jessup was born.
- 14 March - Actor Pamela Stirling was born.
- 25 March - Actor Patrick Troughton was born.
- 27 March - Visual effects designer Bernard Wilkie was born.
- 8 April - Actor Brian Hawksley was born.
- 17 April - Actor Arnold Yarrow was born.
- 13 May - Actor Richard Beale was born.
- 6 June - Actor Aubrey Richards was born.
- 9 July - Writer Hazel Adair was born.
- 22 July - Actor Bill Hutchinson was born.
- 9 August - Actor Graham Leaman was born.
- 30 August - Actor Donald Hewlett was born.
- 17 September - Actor Dinah Sheridan was born.
- 7 October - Actor Will Stampe was born.
- 16 October - Actor John Dearth was born.
- 20 October - Actor Leon Maybank was born.
- 14 November - Actor Tom Bowman was born.
- 19 November - Actor Richard Shaw was born.
- 22 November - Writer Paul Erickson was born.
- 1 December - Actor Eric Dodson was born.
- 2 December - Actor Alec Wallis was born.
- 7 December - Actor Hayden Jones was born.