Ral
From Tardis Wiki, the free Doctor Who reference
Scientist Ral was a member of the Kaled Scientific Elite towards the end of the Thousand Year War between the Kaleds and the Thals. He attempted to warn Davros of the Thal attack on his lab, and later gave him a poison injector to kill himself. (AUDIO: Davros, Corruption)
Ral eventually betrayed Davros to the Thals, as he had come to be disgusted by his complete lack of morals. He accompanied Colonel Murash back to the Thal Dome. He was shot and killed by Nyder, who led the rescue team to free Davros. (AUDIO: Guilt)