You may be looking for Elyon (Dr. Who and the Daleks).

Elyon was a Thal. He told Alydon that Antodus had been wounded and asked what happened to Temmosus. It was Elyon that noticed the Daleks' water pipes leading from the Lake of Mutations.

He went to fill water bags with water from the lake. Shortly after, he was pulled under the water by a monster. Ganatus later mourned him as the first senseless death caused by the Thals' conflict with the Daleks. (TV: The Daleks)

Community content is available under CC-BY-SA unless otherwise noted.