"The Waters of Mars" is the second of four special specials of the British science fiction television series Doctor Who, broadcast between Easter Saturday 2009 and New Year's Day 2010, all serving as David Tennant's final episodes as the Tenth Doctor. As with the previous special, "Planet of the Dead", it was simultaneously broadcast on BBC One and BBC HD on 15 November 2009.
The Waters of Mars has been suggested to play 6 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
