A Hunter-Killer (HK) is an artificially intelligent autonomous war machine, including robot and android, designed and built in automated factories. They comprise the majority of the "soldiers" in Skynet's army. Many are similar in overall form to the war machines of today, such as tanks and aircraft, while others are humanoid endoskeletons.
- By appearance
- By function
- Main article: Series
- A Series - Aerial / Airborne Hunter Killer
- G Series - Ground Hunter Killer
- D Series - Defensive Installation
- T Series - Terminator