Human

Humans are native to the planet Earth. The Doctor has described humans as having indomitable spirit and being daring explorers. Other races have noted humans as being stubborn, aggressive and ultimate survivors. The Silurians put them in the less flattering light of being 'primitive apes'.

In Worlds in Time
The majority of NPCs and Players are Human, or at least humanoid.

In Doctor Who
The Doctor's interest in humankind has led humans to be constantly involved in Doctor Who since the very first episode: An Unearthly Child (1963).