Topic summary
Thals

Extracted from the Wikipedia article List of Doctor Who universe creatures and aliens.
Thal
The Thals are a race of peaceful, blonde humanoids first seen in The Daleks (1963-64) who are natives of the planet Skaro. Once a warlike species, a nuclear conflict with the Daleks, which nearly wiped out all life on their home planet, led them to develop a pacifist, agrarian society. In their debut serial, the Thals aid the First Doctor and his companions in stopping the Daleks. The Thals re-appear in 1973's Planet of the Daleks, during which they help the Third Doctor in fighting the Daleks on the planet Spiridon. In 1975's Genesis of the Daleks, set during the nuclear conflict with the Daleks, the Thals are depicted fighting the Kaleds, the race that will become the Daleks, although in combat they are depicted as being just as evil as them during the war. The Thals also appear in 1965's Dr. Who and the Daleks, a film adaptation of The Daleks.