Bloodtide is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. Plot The Sixth Doctor and Evelyn meet Charles Darwin on the Galapagos Islands where an awakening group of Silurians have horrifying plans for mankind. Cast The Doctor — Colin Baker Evelyn Smythe — Maggie Stables Tulok — Daniel Hogarth Sh'vak — Helen Goldwyn Governor Lawson — Julian Harries Emilio — Jez Fielder Greta — Jane Goddard Charles Darwin — Miles Richardson Captain Fitzroy — George Tefler Lokan — Jez Fielder Notes The play features an appearance by an adult Myrka, a type of monster previously seen in the TV serial Warriors of the Deep. According to this story, humanity (Homo sapiens) are the result of a forbidden breeding program carried out by a renegade Silurian scientist. External links Big Finish Productions – Bloodtide Sixth Doctor audio plays 2001 audio plays Fiction set in 1835