1927

Unknown dates

 * Jack Harkness landed in Ellis Island. His forged visa was stolen by Angelo Colasanto. Angelo was imprisoned, but Jack faked papers to let him out. Jack and Angelo eventually found a room to share in New York City. They thwarted a plot by the Trickster's Brigade to use an alien parasite to harm future US President Roosevelt's mind and allow the Third Reich to win World War II. Jack disintegrated the creature, but was caught by the police. Jack was shot and Angelo arrested. He assumed that Jack was dead. (TW: Immortal Sins)
 * Mary Baker, the future paternal grandmother of Julia Hardwick as well as one of her possible descendants due to time travel, was born. (WC: A Ghost Story for Christmas)

Alternative timeline

 * December - In an alternative timeline accidentally created by the Fifth Doctor, the RMS Lusitania did not sink on 7 May 1915 and a petty criminal named Eric Charles Vincent (who died in the sinking of the Lusitania in the proper timeline) killed Alexander Fleming in a botched robbery attempt before the biologist discovered penicillin. Without the protection offered by penicillin, Earth fell prey to new strains of meningitis and pneumonia in 1956 and the survivors never developed a space programme. Consequently, the Knights of Velyshaa were not defeated by the Earth Alliance in 3562 as they otherwise would have been. (BFA: The Sirens of Time)

January

 * 16 - Peter Forbes-Robertson, an occasional Doctor Who guet actor, was born.
 * 25 - Gregg Palmer, who played Shav and Gern in DW: The Tenth Planet and Lieutenant Lucke in DW: The War Games, was born in San Francisco, California.

February

 * 16 - June Brown (Eleanor in DW: The Time Warrior) was born.
 * 28 - John Carson was born.

March

 * 6 - John Rees (Hardy in DW: Frontier in Space) was born.
 * 9 - Eddie Powell (Thompson in Daleks' Invasion Earth 2150 A.D.) was born.

April

 * 7 - Lawrence Davidson (the Draconian First Secretary in DW: Frontier in Space) was born.
 * 19 - Bernard Martin (a technician in DW: The Ambassadors of Death) was born.
 * 21 - Gerald Flood, who portrayed King John in DW: The King's Demons and provided the voice for Kamelion, was born in Portsmouth, England.
 * 26 - Graham Ashley, who played the Overseer in DW: The Underwater Menace, was born in Northampton, England.
 * 26 - Derek Waring (Shardovan in DW: Castrovalva) was born.

May

 * 2 - Ray Barrett, who played Bennett in DW: The Rescue, was born in Brisbane, Australia.
 * 26 - Julia Smith was born.

June

 * 3 - Kit Pedler (Doctor Who writer and co-creator of the Cybermen) was born.
 * 4 - Geoffrey Palmer (Masters in DW: Doctor Who and the Silurians, the Administrator in DW: The Mutants and Hardaker in DW: Voyage of the Damned) was born.
 * 29 - Tommy Wright was born.

July

 * 12 - Frank Windsor (Ranulf Fitzwilliam in DW: The King's Demons and Inspector Mackenzie in DW: Ghost Light) was born.

September

 * 8 - James Culliford was born.

October

 * 7 - Tony Beckley was born.

November

 * 5 - Kenneth Waller (Hedges in DW: The Invisible Enemy) was born.
 * 8 - Ken Dodd (the Tollmaster in DW: Delta and the Bannermen) was born.
 * 8 - Lennie Mayne, who would directs serials for each of the first four Doctors, was born.
 * 12 - John Hollis (Sondergaard in DW: The Mutants) was born.

December

 * 10 - Anthony Coburn, who wrote DW: An Unearthly Child, was born.
 * 11 - Bill McGuffie was born.
 * 12 - Honor Blackman, who played Professor Lasky in DW: Terror of the Vervoids, but who is best known for her work in The Avengers and Goldfinger, was born in London.
 * 31 - Frank Gatliff (Ortron in DW: The Monster of Peladon) was born.