An anthropologist was a scientist that studied humans.
Professor Edward Travers CBE was a British anthropologist and explorer. He helped the Second Doctor defeat the Great Intelligence. (TV: The Abominable Snowmen)
Professor Vittorio Levi was a zoologist, botanist, astronomer, anthropologist and amateur space traveller, and also a colleague and friend of the Doctor. He, Sarah Jane Smith and the Fourth Doctor travelled to the planet Aquatica where they were taken hostage by Medusians. (PROSE: War on Aquatica)
Lieutenant Gary Venning was an anthropologist working at the Snowcap Tracking Station in 2006 when the Cybermen invaded to take over the FLIPback Project. (PROSE: Iceberg)