Z'nai
From Tardis Wiki, the free Doctor Who reference
The Z'nai were a warrior race. They were interested in the Time Lords, and interrogated Leela about them. They wore two suits, one of metal and one of animal skins. The Time Lords once sent the Fourth Doctor to stop them. (AUDIO: The Catalyst) They had eventually died after they interrogated Leela. (AUDIO: Empathy Games)
