Ziyou Wanle

 was a warranted human prospector on the Scientifica colony planet.

He was descended from settlers from the Southern Chinese Union. After Wanle was a freedman, he became an accountant. The Seventh Doctor found him in a bar on the planet. He asked Wanle to tell him about seeing a "ghost" in a cavern a year previously. He was placed in a mental hospital for three months following the incident, where they attempted to erase his memory of it. He escaped while he still had some of his identity. He was arrested for violation of Planetary Emergency Directive Three, which was disseminating propaganda with treasonable intent and terrorist acts. He was executed and his head stuck on a spike as a warning to other "traitors". (PROSE: Cold Fusion, AUDIO: Cold Fusion)