JACK

Jack is a android created by a scientist named Jane in the Tekken franchise.

Tekken 6
Jane successfully restored Jack-5's memory at the completion of the 5th King of Iron Fist Tournament. It was not long until the Mishima Zaibatsu decided to make their own Jack model, which has been built with 10 times the power of Jack 5. The new G-Corporation leader Kazuya Mishima also demanded a new Jack model eventually creating Jack-6. They decided to test Jack 6 in the King of Iron Fist Tournament 6 to destroy the Mishima Zaibatsu.