12 May

On 12 May 1999, Adelaide Brooke, commander of Bowie Base One, the first human base on Mars, was born. (TV: The Waters of Mars)

On the same day, in 1898, actor Edmund Trevithick was born. (PROSE: Nightshade)

Behind the scenes

 * 1942 - Actress Pam St. Clement was born.
 * 1942 - Voice actor Royce Mills was born.
 * 1945 - Actor Nicky Henson was born.
 * 1956 - Actor Christopher Good was born.
 * 1957 - Actor Sneh Gupta was born.
 * 1968 - Actress Catherine Tate was born.
 * 1973 - Episode six of Planet of the Daleks was first broadcast BBC1.
 * 1982 - Composer Humphrey Searle died.
 * 2001 - Composer Norman Kay died.
 * 2008 - Actor Robert Russell died.
 * 2010 - Actor David Kincaid died.
 * 2013 - DVD box set Doctor Who: The Complete Series Seven was released in Region 2 early, nearly a week before the broadcast of the final episode of the series.