Lulo was a humanoid female from the planet Nukolee. She was the daughter of Emperor Djan and the sister of Prince Raviki.
In 2267, Lulo greeted her brother at the palace when he returned home after years away at school. Later, while serving food to Raviki and his guests, she suddenly attempted to kill him with a knife, but was stopped by Spock. Upon regaining her senses, she was greatly upset over what she did, and confessed that, two weeks earlier, she had killed her beloved dog Bando. This convinced Raviki of Spock's theory that madness, not treason, was behind the attempts on his life, and it was eventually determined that gases from Sanduy's Comet were the cause. (TOS comic: "A World Gone Mad")