2 January 1948: birth of Deborah Watling , who played the Second Doctor's companion Victoria Waterfield in 1967-8 (and also returned for the unofficial spinoff Downtime in 1998)
2 January 2006: death of John Woodnutt, who played George Hibbert in Spearhead from Space (1970), the Draconian Emperor in Frontier in Space (1973), Broton and the Duke of Forgill in Terror of the Zygons (1976), and Seron in The Keeper of Traken (1981).
ii) broadcast anniversaries
2 January 1965: broadcast of "The Powerful Enemy", first episode of the story we now call The Rescue, introducing Maureen O'Brien as new companion Vicki. The Tardis, now without Susan, lands on the planet Dido where the two survivors of a crashed space ship are terrorised by the mysterious Koquillion.
2 January 1971: broadcast of first episode of Terror of the Autons, starting Season 8 of Old Who and introducing Katy Manning as Jo Grant, Richard Franklin as Captain Mike Yates, and Roger Delgado as the Master. The Master takes over a circus, a radio telescope and a plastics factory.