- Entirely made of a liquid metal called mimetic polyalloy
- Liquid molecular brain
- Could impersonate other people
- Could morph its arms into blades, spikes or hooks
- Could not however, turn into anything not of equal size
- Immense physical strength
- Hunters designed to terminate other life forms
- Usually impersonate civilians, only attacking once the target has been identified
- 2029: Created by Skynet, during the war between humans and machines
- One was sent back in time to 1995 by Skynet, to kill John Connor, the leader of the human resistance
- Its destruction, along with Cyberdyne research, contributes to preventing Judgment Day & avoiding the war
