Doctor Who companions
Sara Kingdom (Jean Marsh) is a Space Security Agent in The Daleks' Master Plan. She joins the Doctor in his fight, briefly travelling in the TARDIS to several different locations in time and space. When the Doctor activates the Time Destructor, a device that accelerates time, Sara cannot be saved. She ages and dies, her remains turning to dust. Sara is sometimes counted as a companion of the First Doctor, but sometimes not.