Maria Jackson

Maria Jackson was a young neighbour and ally of Sarah Jane Smith.

Profile
At thirteen years of age Maria's parents Alan and Chrissie Jackson had divorced, amicably. Shortly before Alan moved himself and his daughter to Bannerman Road in a suburban part of London.

That night Maria made the life-changing discovery of a neighbour, Sarah Jane Smith, conversing with a glowing winged alien. The very next day, she and a new friend from the neighourhood went to the Bubble Shock! factory, encountered other, unfriendly aliens and with Sarah, Kelsey and a young artificial Human, the Archetype, banded together to defeat the Bane invasion. (SJA: Invasion of the Bane)

Maria was revealed to be in Cornwall with her father during the events of Earth's transportation to the Medusa Cascade and the subsequent Dalek invasion. (DW: The Stolen Earth)

Personality
Maria had a patient, tolerant personality and also an inquisitive one. The divorce of her parents had made her somewhat moody. Maria seemed much less worldly-wise and trendy than Kelsey though she was also braver and more sensitive. Clearly, Maria looked up to Sarah Jane.

Donna's World
If Donna Noble had turned right for a job interview instead of turning left, Maria would have investigated the Royal Hope Hospital with Sarah Jane, Clyde and Luke, meeting Martha Jones there. Since, as it was moved to the moon, the oxygen ran out it caused every one in the hospital, including Maria, to die of suffocation. (DW: Turn Left)