Hector: The robot brought to station Saturn 3 in the movie of the same name. The robot's mission is to replace one of the scientists on the station. In order to fulfill this mission, the robot is implanted with brain tissues from human fetuses -- what could go wrong? Then Hector gets a direct brain link from a homicidal maniac. Oh, that is probably bad! A few people die, before Hector is destroyed. I would have never seen that coming.
(Image courtesy of Something is Wrong on Saturn 3)