Nocta

 was a friend of Horl and Katta on Tick-Tock World, though they thought she was weird. She wasn't that sociable and often made people find her in her large house. She didn't like calling people by their own name. She managed to survive on the world by living in a Zero Room. She was eventually killed by a Xesto after she was distracted by Barbara Wright and Ian Chesterton. (AUDIO: Tick-Tock World)