Doctor Who: The Keys of Marinus
- વર્ષ: 1964
- દેશ: United Kingdom
- શૈલી: Science Fiction, Drama, Adventure
- સ્ટુડિયો: BBC
- કીવર્ડ: time travel, alien, distant planet
- ડાયરેક્ટર: John Gorrie
- કાસ્ટ: William Hartnell, Carole Ann Ford, Jacqueline Hill, William Russell, George Coulouris, Martin Cort