4. 'Johnny 5' ('Short Circuit')
Basic Function: He begins as a weapon for the U.S. military, but after getting stuck by lightning he develops free will and through the course of two movies does everything from building toy robots to battling jewel thieves.
Good or Bad: Johnny 5 is extremely sweet and kind, but once threatened his eyes go red and he's capable of extreme violence, though only when protecting those he cares about.
Boldest Action: Jacking parts from a Radio Shack to repair himself after getting brutally attacked, and relentlessly tracking down his assailants.