Doctor Who (series 1) Eccleston as the ninth incarnation of the Doctor, his only series in the role, accompanied by Billie Piper, as his first and main companion Rose Tyler, whom he plucks from obscurity on planet Earth, and to whom he grows increasingly attached. He also travels briefly with unruly boy-genius Adam Mitchell, played by Bruno Langley, and with 51st-century con man and former "Time Agent" Captain Jack Harkness, portrayed by John Barrowman. Episodes in the series form a loose story arc, based upon the recurring phrase "Bad Wolf", the significance of which goes unexplained until the two-part series finale. Alongside the "Bad
Partners in Crime (Doctor Who) the Doctor's original offer to travel in the TARDIS. The Doctor makes it clear to her that he only wants to be friends and nothing more, and she emphatically agrees. She makes a detour to leave her car keys in a litter bin, telling her mother Sylvia to collect them later. While there, she meets a blonde woman and asks her to help Sylvia find the keys. The woman turns out to be Rose Tyler, who fades from view as she walks away from the area. In the final scene, Donna asks the Doctor to fly by her grandfather, Wilfred.