Studying for her doctorate in medicine, Martha Jones was inside Royal Hope Hospital when it was transported to the moon. Showing great bravery in the face of the Plasmavore, the Doctor invited her for travel with him. She was wooed by William Shakespeare, fought Daleks in New York and looked after the Doctor when disguised as a human school teacher in 1913. When the Doctor was captured by the Master, Martha travelled the world telling his story of resistance. The psychic energy this gathered helped release the Time Lord. After activating Project Indigo in the face of Davros' Reality Bomb, Martha married Mickey Smith and together they hunted alien threats to Earth.
What else have you got? A laser spanner?
He never stops. He never stays. He never asks to be thanked. But I've seen him, I know him... I love him... And I know what he can do.
All this time and you're still full of surprises!