Charles Darwin

Charles Darwin was a famous biologist and friend of the Sixth Doctor. They met whilst Darwin was on the HMS Beagle on 19 September 1835. (AUDIO: Bloodtide) The Eighth Doctor later recalled this encounter and remarked that he almost "[put] him off reptiles for life". (AUDIO: The Creed of the Kromon)

Darwin was known for describing natural selection. However, history forgot that Alfred Russel Wallace had theorised the mechanism years before. Darwin wrote the books Voyage of the Beagle (HOMEVID: Unnatural Selection) and Origin of Species by Means of Natural Selection. (PROSE: The Age of Ambition)

The Third Doctor also claimed to have met Darwin. (PROSE: Island of Death)

He was one of many scientists kidnapped by to create the time brain. (PROSE: Time and the Rani)

The Seventh Doctor laughed at the idea that Darwin's theory of evolution was unproven. (PROSE: Human Nature)

Behind the scenes
David Tennant voiced Charles Darwin in the Aardman Animations film.