List of Doctor Who universe creatures and aliens

This is a list of fictional creatures and aliens from the universe of the long-running BBC science fiction television series Doctor Who, including Torchwood, The Sarah Jane Adventures, Class, K-9 and K-9 and Company. It covers alien races and other fictional creatures, but not specific characters. Individual characters are listed in separate articles.

Note that some information on the page is taken from spin-off media.

The following table is composed of a list of creatures and extraterrestrials that appear in the Doctor Who universe. These come from Doctor Who itself: the classic series, the television movie and the revived series; and in the spin-off series Torchwood, The Sarah Jane Adventures, Class, K-9 and K-9 and Company. In a few cases only some parts of the species are seen on-screen. These appearances are listed as "Partial". Aliens that are verbally referred to or appear in archive footage and photographs are "Mentioned".

Non-organic, sentient beings may be included, such as Gangers, the Whispermen, and the non-corporeal Great Intelligence; but robots are excluded even if seemingly sentient such as K-9, Kamelion, Kandy Man, et al. Humans are also included if their appearance and nature differ significantly from real-world humans, such as Lady Cassandra O'Brien.∆17 and the Boekind.

The list is sorted in chronological order of the creatures' first mention or depiction.

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