Maria Robotnik (Sonic X)

Maria Robotnik (マリア・ロボトニック) was Shadow's human companion. She is the cousin of the antagonist Dr. Eggman and the granddaughter of Professor Gerald Robotnik. She is the main reason for Shadow's creation. Maria was a terminally ill patient on the Space Colony ARK, who had contracted the disease NIDS (Neuro-Immuno Deficiency Syndrome), which seems to be related to the disease AIDS and with real life NIDS. Her grandfather, Professor Gerald Robotnik, created Shadow as a means to study immortality and to use the fruits of the project to attempt to cure Maria. After Shadow's creation, he became close friends with Maria to the end. Sadly, Maria was killed during the invasion of the ARK by the Guardian Unit of Nations, after releasing Shadow from a cryogenic tube in the Japanese version. However, in the English dub, they say she was taken away.

. She was once forced to live on a military space station, built by her Grandfather, under mysterious conditions. It was unknown if she was dragged there by her Grandfather or parents, of she had a illness, or if she was one Prof. Gerald's experiments, but it was then revealed that she was taken to the ARK because she had a disease called "NIDS" (Neuro-Immune Deficiency Syndrome) and her grandfather wanted to try to find a cure.

Maria is to Shadow as Chris is to Sonic.