"Martian" was a generic term for any inhabitant of the planet Mars. The term was applied to several species, (TV: Cold War, PROSE: The Secret of the Mountain, et al) in part because of the planet's multiple conflicting and overlapping timelines (PROSE: The Last Resort) and hypothetical realities (PROSE: The Ninnies on Putney Common)
Several sentient species evolved on Mars. (TV: The Ice Warriors, The Seeds of Death, et al) These included the Ice Warriors, (TV: The Ice Warriors) who the Eleventh Doctor called "the Martian race"; (TV: Cold War) the Gandorans; (AUDIO: Lords of the Red Planet) the Ninnies; (PROSE: The Ninnies on Putney Common) and another type simply known as "Martians." (PROSE: Enter Wildthyme, AUDIO: Vince Cosmos: Glam Rock Detective, et al.)
- Main article: Mars#Colonization period
By the 22nd century, Mars had been colonised by humans, who, according to one account, pushed the native Ice Warriors into poverty. (PROSE: Fear Itself) Another account claimed that humanity had colonised Mars unimpeded when — in the words of Harold — after "something to do with T-Mat on the Moon", "centuries" before the 23rd century, a whole fleet of Ice Warriors were — according to what Gregson Grenville had learnt in school — "all melted when their invasion fleet spiralled into the sun".
According to another account, the Tenth Doctor described the Ice Warriors as "legends on Mars from long ago" after the first off-world human colony was founded on Mars in 2058. (TV: The Waters of Mars)
Many humans considered themselves "Martian" after colonisation, as there came a point when humans were regularly being born there. The human second-in-command of the ADF, Reb Shavron, referred to himself as a Martian. (PROSE: Terror Task Force)
Prior to colonisation, many humans simply interchanged the word Martian for the term alien — much like "flying saucer" was used as a generic term for alien spacecraft. For example, Donna Noble referred to the Tenth Doctor as a Martian before understanding he was, in fact, a Time Lord. (TV: The Runaway Bride) Likewise, Lucie Miller asked the Eighth Doctor if he thought she was a Martian when he asked if she was from Earth. (AUDIO: Blood of the Daleks)
Ostensibly because of this penchant to imagine Mars as a likely source of alien life, some humans occasionally misidentified other species for Martians, just as Donna had done with the Tenth Doctor. Lance Bennett passed this misidentification to the Empress of the Racnoss, however, the Doctor revealed to her that he was actually one of her hated enemies, the Gallifreyans. (TV: The Runaway Bride)
Behind the scenes
Daleks Versus the Martians
The non-DWU story Daleks Versus the Martians featured Dr. Who, Susan and Louise (from the movies Dr. Who and the Daleks and Daleks' Invasion Earth 2150 A.D.) encountering a different species of native Martians to those encountered by the Doctor in the standard Doctor Who universe.