Nyder
Nyder was Kaled and a member of the Kaled Scientific Elite. He served as their security commander. A cruel and ruthless man, he was a loyal aide to Davros. He was almost always seen at Davros' side, and always on the lookout for traitors and dissenters among the Elite who might go against Davros' plans, particularly where the Daleks were concerned.
When the Doctor managed to persuade Mogran of the danger the Daleks posed, Nyder conspired with Davros to betray the Kaleds to their enemies, the Thals, which led to the destruction of the Kaled dome. Nyder also ferreted out Davros' other trusted aide Gharman as a potential traitor. When the Daleks turned against their creator and activated the Dalek assembly line without Davros' permission, Nyder attempted to shut it down, but one of the Daleks exterminated him.
