1931

Doctor Who Universe

 * Though he has visited the planet several times before, Monarch's ship begins to receive radio signals from Earth. (DW: Four to Doomsday)
 * A film version of Frankenstein is produced. (DW: Doctor Who)
 * The Master operates as a gangster in Chicago, but his plan is unknowingly defeated by the Doctor. (VD: The Duke of Dominoes)
 * June - Thomas Campbell Brockless, the father of Tommy Brockless, dies of a heart attack at the age of 57. (TW: To the Last Man)

January

 * 26 - Alfred Lynch is born.

February

 * 15 - Claire Bloom is born.

March

 * 1 - Neville Barber is born.
 * 15 - James Ellis is born.
 * 26 - George Raistrick is born.
 * 29 - Peter Russell, who played Eldred in DW: The Time Meddler, is born.

April

 * 1 - George Baker is born.
 * 16 - Godfrey James is born.

May

 * 18 - John Fraser is born.

August

 * 25 - Bryan Mosley, aka Buddy Windrush, who played the prop man in DW: The Daleks' Master Plan and a pirate in DW: The Smugglers, is born in Leeds.
 * 25 - Peter Gilmore is born.
 * 31 - Dennis Tate, who played a Technix in DW: The Daleks' Master Plan, is born in Iowa.

Unknown date

 * Cy Town is born.
 * Frances Pidgeon is born.
 * John Collin is born.
 * Max Faulkner is born.