Nero was a male Romulan native to the 24th century. He was a mining vessel captain in service of the Romulan Star Empire's Mining Guild. In 2387 when Romulus was destroyed in the Hobus star who went supernova, and his wife assumed killed, Nero began a campaign of retribution against the Federation and its allies, who he blamed for the loss of Romulus. He particularly blamed Spock and attacked the Vulcan at Hobus causing both to be accidentally be sent back in time - Nero emerged in 2233 where he continued his campaign, generating an alternate reality. Nero was eventually killed as a result of the actions of the crew of the USS Enterprise working against him to try and put an end to his megalomaniacal attacks. (ST comic: "Countdown"; TOS movie & novelization: Star Trek)