Anteus

 was an android created to help defeat Perseus.

The Seventh Doctor and a 21st century girl tricked Perseus by entering a contest to build a working android. Anteus was superior to the Perseus entry, and the Doctor goaded the Perseus representative into buying Anteus. Anteus proceeded to destroy the AI blocking that Perseus had installed in its Household Assistance Devices. The Doctor revealed that, under its outer casing, Anteus was made of mud. (PROSE: Anteus)