Alisha Hammerson was a human-looking, sophisticated Auton controlled by the Nestene Consciousness.

In the 1990s, she set up a new plastics factory. Within six months, she dominated the plastics market with her company, Hammerson Plastic PLC. A biography was published, called simply Alisha, a book the Seventh Doctor found used too many semi-colons. This first drew the Seventh Doctor's attention to the Nestene plans. On New Year's Eve, 1999, she held a fabulous party. She planned to replace her guests with Auton replicas so the Earth could be dominated and absorbed. The Doctor and Mel gate-crashed the party and broke the Nestene link to de-activate her. (COMIC: Plastic Millenium)

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