Katryca was a human from the planet Ravalox in c. 2000000.

She was the leader of Tribe of the Free, a group of feral and wild humans, and did not understand much about technology since all lifeforms on Earth had been destroyed, and the planet was renamed Ravalox. She led a rebellion of her people into the under tunnels of Earth but was killed by the robot Drathro. (TV: The Mysterious Planet)

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