Oscar Wilde

Oscar Wilde was a 19th century Irish writer. During his days at the University of Oxford, an alien infected him with a disease that turned him into a Vampire. Returning home to Dublin, he passed the disease to Florence Balcombe. Some twenty years later he was imprisoned in Reading Gaol where the prison doctor experimented on him. After the Doctor cured Wilde of his vampirism, he then left for Paris. (DWAM: Bat Attack!) Once he arrived in Paris, he was met by Iris Wildthyme and an unknown incarnation of the Doctor prior to the eighth. (EDA: The Scarlet Empress)

In 1865 America, Wilde was impersonated by Robert Knox in the lead-up to assassination of Abraham Lincoln. (BFA: Assassin in the Limelight)

Behind the scenes
In real life, Wilde was infamously imprisoned for committing homosexual acts, under then-Draconian British law. Although a few of the sources above make reference to his imprisonment, none give the specific reason for his incarceration, nor make any other reference to his homosexuality. The Doctor Who universe is thus effectively silent as to Wilde's sexual orientation.