According to M'gann M'orzz, she is a Green Martian who was born and raised on Mars. She has 12 sisters, 17 brothers, and over 300 cousins. Among her family, M'orzz was closest to her uncle, J'onn J'onzz. Unlike most families, it seems, she was raised in a "liberal" atmosphere and disliked the mistreatment of White Martians. While observing her Uncle J'onn's adventures, M'orzz fell in love with Earth and wished to visit it. The chance finally came when J'onn J'onzz, the Martian Manhunter, returned to Mars and held a competition to find his young partner in crime fighting. M'orzz won and became a superhero codenamed Miss Martian. In reality, M'orzz is a White Martian, J'onn's niece, and had a lonely childhood on Mars. She is the daughter of a Green Martian, J'onn's sister, and a White Martian. Most of her siblings are green but she has one white brother. She saw a broadcast of "Hello, Megan!" from Martian Manhunter and immediately took a liking to the show and its star.