3 June 1927: birth of Kit Pedler, who co-wrote The Tenth Planet (First Doctor, 1966), The Moonbase (Second Doctor, 1967) and The Tomb of the Cybermen (also Second Doctor, 1967).
3 June 1946: birth of Penelope Wilton, who played Prime Minister Harriet Jones in several Tenth Doctor stories between 2005 and 2008.
3 June 1949: birth of Ian Gelder, who played MI5 tech guy Dekker in Torchwood: Children of Earth (2009), voiced the Remnants in The Ghost Monument (Thirteenth Doctor, 2018) and played the enigmatic Zellin in Can You Hear Me? (Thirteenth Doctor, 2020).
3 June 2019 (sob): death of Paul Darrow, who played Captain Hawkins in Doctor Who and the Silurians (Third Doctor, 1970) and Tekker in Timelash (Sixth Doctor, 1985). And Avon, of course.
ii) broadcast anniversaries
3 June 1967: broadcast of third episode of Evil of the Daleks. The Doctor agrees to test Jamie in order to isolate the 'human factor'.
3 June 1971: broadcast of third episode of The Time Monster. The Master, having summoned Krasis via the time crystal, launches a series of time-crossing attacks on UNIT.
3 June 2006: broadcast of The Impossible Planet. The Doctor and Rose arrive on a base investigating a mysterious world impossibly in orbit around a black hole, where the human staff are assisted by the enigmatic Ood.
3 June 2017: broadcast of The Lie of the Land. The Monks have ruled the world since humanity took its very first baby steps towards the Sun. One problem... they haven't always been there. And only Bill Potts sees the truth. But where is the Doctor? And how can Bill make the rest of the world see?