the cybermen are a fictional race of cyborgs in the british television series "doctor who". they are one of the greatest and longest enemies of the doctor. cybermen were originally humanoids from the earth's twin planet mondas. the people of mondas began to put more and more artificial metal parts into their bodies to keep themselves alive, making them cyborgs. this led to the race starting to think logically and calculating, showing no emotions. the cybermen also turning other people into cyborgs.