27 December 1916: birth of Noel Johnson who played King Thous in The Underwater Menace (1967) and Sir Charles Grover in Invasion of the Dinosaurs (1974)
27 December 1934: birth of Christopher Benjamin, who played Sir Keith Gold in Inferno (1970), Henry Gordon Jago in The Talons of Weng-Chiang (1977) and the Big Finish Jago and Litefoot stories since 2009, and Colonel Hugh Curbishley in The Unicorn and the Wasp (2008) as well as Tardelli in the 2008 Eighth Doctor audio Grand Theft Cosmos.
ii) broadcast anniversaries
None. This is the last such day in the calendar year; the next 177 days (178 if leading into a leap year) all have broadcast Whoniversaries, until 22 June ends the run.