You may be looking for Dyoni.

Dyoni was a member of the Thal party led by Temmosus which journeyed to the Dalek City in hopes of finding food. She was in love with the young Thal Alydon.

When Alydon refused to abandon the pacifist life his people had known in the centuries since the neutronic war between his ancestors and the Daleks, Dr. Who devised the ruse of threatening to take Dyoni to the city and give her to the Daleks for experimentation in exchange for the fluid link needed to make his ship TARDIS operational again. As he had hoped, Alydon's love and protective feelings for Dyoni moved him to strike Ian Chesterton as he attempted to abduct Dyoni, thus proving that he and his fellow Thals were in fact willing to fight. (NOTVALID: Dr. Who and the Daleks)

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