2021

October

 * The Seventh Doctor and Ace investigated mysterious goings-on at St. Gart's Brookside Hospital in London and discovered a Cyberman threat. An emergency room nurse, Thomas Hector "Hex" Schofield, celebrated his twenty-third birthday on 12 October in the course of assisting the duo. He then joined them aboard the TARDIS. (AUDIO: The Harvest)

Unknown dates

 * Steffi Ehrlich was born in Germany. (TV: The Waters of Mars)