![Doctor Who: The Keys of Marinus Poster](https://image.tmdb.org/t/p/w500//oPlKsbfDbSKIl73hqZIo8fgRcpQ.jpg)
Doctor Who: The Keys of Marinus
59.00%
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May 16, 1964
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Science Fiction, Drama, Adventure
The TARDIS arrives on the planet Marinus on an island of glass surrounded by a sea of acid. The travellers are forced by the elderly Arbitan to retrieve four of the five operating keys to a machine called the Conscience of Marinus, of which he is the keeper. These have been hidden in different locations around the planet to prevent them falling into the hands of the evil Yartek and his Voord warriors, who plan to seize the machine and use its originally benevolent mind-influencing power for their own sinister purposes.
Featured Crew
John Gorrie
Director
Terry Nation
Writer
Verity Lambert
Producer
0
Cast
![William Hartnell](https://image.tmdb.org/t/p/w300//yMNMzT2YVinyJLzqrzTC4clbnLT.jpg)
William Hartnell
The Doctor
![Carole Ann Ford](https://image.tmdb.org/t/p/w300//2rpy4eydA8pT4e8uUXSPpgxCVOc.jpg)
Carole Ann Ford
Susan Foreman
![Jacqueline Hill](https://image.tmdb.org/t/p/w300//aQGPgRYEcS26ALKea2dwVRsAJF9.jpg)
Jacqueline Hill
Barbara Wright
![William Russell](https://image.tmdb.org/t/p/w300//aOsH33Qcilx5yBn4e5CUuKtct0y.jpg)
William Russell
Ian Chesterton
![George Coulouris](https://image.tmdb.org/t/p/w300//cB87rJWOsstpwhBXk6nqqZ9SEJg.jpg)
George Coulouris
Arbitan