Martha Jones
From Tardis Wiki, the free Doctor Who reference
Martha Jones had her life changed for the worse on 25 June 2007, when Donna Noble turned right instead of left; this small change in affairs produced Donna's World.
Martha was inside the Royal Hope Hospital when it was transported to the Moon. (TV: Turn Left) There, the hospital was invaded by Judoon. (TV: Turn Left, Smith and Jones) A woman - Sarah Jane Smith - took control of the situation. With the hospital running out of air, Martha gave the last oxygen tank to one of her colleagues, Oliver Morgenstern. She died as a result, leaving him the only survivor. (TV: Turn Left)