Doctor Who show, as the story begins anew with each companion and she undergoes more change than the Doctor. The primary companions of the Ninth and Tenth Doctors were Rose Tyler (Billie Piper), Martha Jones (Freema Agyeman), and Donna Noble (Catherine Tate) with Mickey Smith (Noel Clarke) and Jack Harkness (John Barrowman) recurring as secondary companion figures. The Eleventh Doctor became the first to travel with a married couple, Amy Pond (Karen Gillan) and Rory Williams (Arthur Darvill), whilst out-of-sync meetings with River Song (Alex Kingston) and Clara Oswald (Jenna Coleman) provided ongoing story arcs. The tenth series introduced Pearl Mackie as
Doctor Who (series 1) the BBC. Davies voluntarily wrote a pitch for the series, the first time he had done so; he previously chose to jump straight to writing pilot episodes because he felt that a pitch would "feel like [he's] killing the work". The fifteen-page pitch outlined a Doctor who was "your best friend; someone you want to be with all the time"; the eighteen-year-old Rose Tyler as a "perfect match" for the new Doctor; avoidance of the forty-year back story "except for the good bits"; the retention of the TARDIS, sonic screwdriver, and Daleks; removal of the Time Lords; and also a