<P> Piper's 2010 appearance in The End of Time, Tennant's final story as a series regular, was leaked by the press in May 2009 when Piper was seen photographed on location with Coduri and Tennant . Though Davies had intended the serial to end with the Tenth Doctor visiting his former companions, he struggled with how to include Rose . An initial idea was for Rose to appear with her part - human Doctor in the parallel universe, where both would sense the original Tenth Doctor regenerating . However, Davies felt this would raise too many questions about their lives in the parallel universe . Davies' successor as executive producer, Steven Moffat, felt that Davies ended Rose's story in the perfect way by choosing to take it back to the beginning of her acquaintance with the Doctor . Piper's return for Doctor Who's 50th anniversary episode was confirmed in March 2013 . Moffat wished to include Piper in the episode because he felt that she symbolised the rebirth of Doctor Who . As he did not feel comfortable adding to Davies' story arc, he chose instead to re-introduce her Bad Wolf persona . During the episode Piper's character has dialogue solely with John Hurt's War Doctor, and is unseen by the other characters, including the Tenth Doctor . Reviewers noted similarities between the characterisation of Bad Wolf Rose and that of a plot device used by Charles Dickens in his 1843 novella A Christmas Carol . Ted B. Kissell, a journalist for The Atlantic likened the War Doctor to Ebenezer Scrooge and dubbed Rose the "Ghost of Doctors Yet to Come". </P> <P> After a preview of the first series, The Guardian's Owen Gibson described Rose as "newly empowered" and a "go - getting teen in the Buffy the Vampire Slayer mould ." Ahead of the series premiere on Australian Network ABC the Sydney Morning Herald's Robin Oliver described Rose's role in the series as being "more the Doctor's equal than previous companions" and that this was "no mean achievement against Eccleston's acting skills ." Seventh Doctor actor Sylvester McCoy opined that Piper was "wonderful in the role" and the relationship between her and the Doctor was "quite extraordinary". Porter suggests in her analysis of Rose that the romance between her and the Doctor widened the demographic appeal of the series . She claims that the love story "simmers enough below the surface that adults, especially women who find time - lords sexy, watched the series for Rose's interplay with the Doctor". In their book Who is the Doctor?, Graeme Burk and Robert Smith described the climactic kiss between the Ninth Doctor and Rose in "The Parting of the Ways" as being something "we all secretly wanted, even though it ultimately killed him". Peter Davison, who portrayed the Fifth Doctor, also felt that allowing the Doctor and his companion to have sexual tension ultimately allowed for more rounded characterization . He believed that Rose was the first example of the production team creating a well written companion . </P> <P> Burk and Smith found the pairing of the Doctor and Rose to be unlikeable in the episode "Tooth and Claw" because they were "acting like smug idiots". However they noted that "fortunately there are consequences: the season arc gets kicked off as a direct result of the Doctor and Rose being so irritating". Harry Venning of The Stage commented that the eventual parting scene between Rose and the Doctor in "Doomsday" was "beautifully written and movingly played," with "not a dry eye in the universe". Burk and Smith singled out Piper's performance in the episode for special praise stating she "is astonishing at capturing the reality of someone whose world suddenly, finally collapses ." Remarking on Piper's departure, Dek Hogan of Digital Spy stated that "Billie Piper's energy has undoubtedly been one of the reasons that this revival has been so successful and the difficult third series will be so much more so without her ." Stephen Brook of The Guardian commented that "the departure of the much - loved Rose...was brilliantly handled and completely unexpected ." </P> <P> Stephen James Walker, a writer of reference works on Doctor Who, gave an unfavourable review to Rose's return in "Turn Left" in his "unauthorised guide to Doctor Who's fourth series," Monsters Within . He thought that Billie Piper was "distinctly below par", citing her gaunt and malnourished appearance, new hairstyle, and slight lisp as reasons why her acting was not her finest . He criticised her role in the episode, stating it had been "far less well worked out" than Donna's . Ben Rawson - Jones of Digital Spy also noted a change in Piper's enunciation; he compared her accent to "(having) her mouth numbed with local anaesthetic". In Rawson - Jones' review of the series finalé he notes that whilst having the Doctor and Rose' cop off' would be divisive with the shows audience, "Davies wisely managed to please both parties" by pairing her off with a human Doctor instead . However, IGN's Travis Fickett reacted unfavourably towards Rose's return and her pairing with the part human Doctor . He thought that it undermined her "perfect send off" in "Doomsday" as she was on the sidelines for much of "Journey's End", and her ending up with the part human, part Time Lord Doctor "feels like an insult to the character". Io9's Charlie Jane Anders also reacted unfavorably to Rose returning and wrote "it was pretty clear that she was only there so she could get her pet faux - Doctor at the end ." Reviewers generally reacted positively to Piper's 2013 appearance in 50th anniversary episode "The Day of the Doctor". Ben Lawrence of The Daily Telegraph called her performance as the "Bad Wolf" Rose "transfixing". Neela Debnath of The Independent praised the chemistry between Hurt and Piper and compared Piper's performance to Suranne Jones' portrayal of the TARDIS in "The Doctor's Wife" describing it as "slightly eccentric", "oddball" and "off - the - wall". Daniel Martin of the Guardian praised Steven Moffat's decision not to extend Rose Tyler's story or re-unite her with the Tenth Doctor . He called Piper "a true and unending legend of Doctor Who" and stated that "her wise rendition of the Bad Wolf avatar made a passable stab at the stealing of the show". </P>

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