26 April 1928: birth of Donald Cotton, who wrote The Myth Makers (1965) and The Gunfighters (1966) as well as the novelisations of both stories and of The Romans (1965), three of the best Who novelisations in the range.
26 April 1975: death of Kevin Lindsay, who played Linx in The Time Warrior (1973-74), Cho Je in Planet of the Spiders (1974), and Styre/The Marshal in The Sontaran Experiment (1975).
ii) broadcast anniversaries
26 April 1969: broadcast of second episode of The War Games. The Doctor and friends, including Carstairs and Lady Jennifer, escape in an ambulance but are confronted by Roman soldiers.
26 April 1975: broadcast of second episode of Revenge of the Cybermen. Harry and Sarah are on Voga; the Doctor tries to repair the transmat; and the Cybermen arrive.
26 April 2002: webcast of "Death Comes to Time Part 2", twelfth episode of Death Comes to Time.