Maria Robotnik (マリア・ロボトニック, Maria Robotonikku) was Shadow's human companion and best friend.
Maria was a chosen patient on the Space Colony ARK. 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, she was killed ("taken away" in the English dub) during the raid of the ARK by the G.U.N., after releasing Shadow from a cryogenic tube.
Maria is a 12 year old girl who has large dark blue eyes and blonde hair. She wears it wavy and held back with a blue hair band. Clothes-wise, she wears a dark blue top and a light blue dress. Her shoes are low heeled cobalt pumps. Her height is 140 cm. (4 ft. 11 1/2 in.) and weight is 41 kg. (90 lb.)
Maria was a very kind and brave individual who always thought about others before herself. This act of her selfless nature is proven by the fact that after she was captured by a GUN soldier, she didn't hold any ill will nor grudge towards the people living on Earth, and she requested Shadow to give them a chance for their future and that in doing so they will live very blessed lives and that was the reason that he was created.