When Doctor Who returned to the screen in 2005, reviving the franchise after sixteen years, it was an instant phenomenon. In the sixteen years since, New Who (as it is affectionately referred to by critics) has remained a fairly consistent staple of pop culture — due in no small part to its relationship with fans. Legions of dedicated Whovians have flooded the Internet with endless discussions and dissections, comparing Doctors and companions, ranking episodes and arcs. There is, of course, no right answer to the unending question of which companion was the best, but various companions stand out for their different relationships with the Doctor, and for the individual ways that they steer the last Time Lord on his adventures.
Donna Noble exploded into the Whoniverse — and into the TARDIS — in the final scene of Series 2, setting up her appearance in the Series 3 Christmas special. Catherine Tate had already surged to pop culture stardom independently of Doctor Who, and her appearance in the episode was a surprise for viewers, arranged with utmost secrecy. Yet anyone who watched “The Runaway Bride” would be far less surprised by her return as a companion in Series 4. The brassy comedienne might have been an unconventional choice for a companion of the Doctor, but the chemistry between Tennant and Tate was instant and undeniable.
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Almost from the first, Donna is exceptional. If the allure of the Doctor is his capacity to broaden perspectives — to change the lives of his companions by introducing them to a vast and varied universe — Donna distills that journey perfectly. Her first adventure with the Doctor affects her so profoundly that she seeks him
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