The repairmanworked at the Santa Rosa Mental Health Institute and was fixing a light bulb when Hurley was speaking with the Nurse. He was reaching over on a rickety ladder when he was seen by Hurley, who abruptly told him to stop and do it later, fearing that the "curse" would cause an accident.
Although being an unnamed character, the repairman is in fact named, as his name is shown on his staff badge. However, his name is unidentifiable in the episode. Therefore, he is considered as an "unnamed character".