You may be looking for Temmosus.

Temmosus was the leader of the Thals on Skaro. Temmosus was very wary of trusting the Daleks considering the past his race shared with them which had led to the devastation of Skaro. Leading his people into the Dalek City, where the Daleks had offered to share food, Temmosus realised too late they had been betrayed as he was exterminated. (NOTVALID: Dr. Who and the Daleks)

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