Sable

 was an explorer on Zaltys who tried to find out why the Fifth Doctor and Nyssa were there. She was searching for the treasures. She wanted to leave the planet after hearing a warning in the cryogenic bank. She shot Talia. She wanted to escape the planet in the TARDIS and tried to get Adric to pilot it by threatening Tegan Jovanka's life. She was killed by Lusca. (AUDIO: Zaltys)