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: Children in Need coordinates for her council estate on Christmas Eve, offering her the choice to stay with her mother, Jackie Tyler, or continue her travels with him. Suddenly, the Doctor suffers a form of seizure, expelling glowing energy from his mouth, and the TARDIS shudders as if in sympathetic response. The Doctor tells Rose the regeneration is going wrong and starts to act maniacally, throwing switches on the TARDIS console and ranting about increasing speed as the sounds of the Cloister Bell start ringing through the console room. As Rose hangs on to the console for dear life, the TARDIS heads for