Jenny

A reflection of the character of "Jenny" (taken from Wikipedia)

Martin Anderson of Den of Geek! has suggested that the creation of a daughter character for the Doctor was a move designed to lay to rest decades long speculation that the Doctor himself might one day regenerate into a female form. He deems the act of reviving the character at the end of the episode to be "a pretty cheap trick", but asserts that; "this is outshone by the big surprise at Jenny's career-choice at the conclusion of The Doctor’s Daughter. Wow." Newsround's Lizo Mzimba opines that Moffett's appearance as Jenny is "superb", while Doctor Who producer Phil Collinson has hailed the introduction of Jenny as the Doctor's daughter: "One of the best pre-title sequences we've ever had." Despite reviewing the episode "The Doctor's Daughter" poorly as a whole, Digital Spy's Ben Rawson-Jones argues that Jenny "deserved a stronger narrative context for her debut", and that Georgia Moffett portrayed the character with "the right spirit, arrogance and compassion that befits a sprog of the Time Lord."

Ian Berriman, writing for SFX, is somewhat more critical of the character, stating: "we’re not given much time to get to know Jenny (and you always suspect she’s a redshirt), so her “death” is not as affecting as it could have been." The Stage's Mark Wright is similarly critical of the character and her conception, writing: "I’ll admit to feeling cheated that she isn’t the real thing and it’s a bit of techno-gubbins malarkey to give the Doctor something to emote against. I don’t quite buy the bond that springs up between the Doctor and Georgia Moffett’s Jenny (a name she is given rather quickly). She is a genetically engineered soldier with military tactics and skills programmed in, and knows what to do with a gun, much to the Doctor’s horror. But why does he care, she isn’t really his daughter?"

Anderson, Berriman, Wright, and The Times' Andrew Billen all speculate that the character is likely to return to the series in the future, with Anderson assessing that the episode's ending left "vast scope" for the return of the character in her own spin-off: "Moffett herself has the obvious credentials due to her real-life dad, and she’s certainly young, attractive and athletic enough to cross quite a few barriers in viewer demographics." Billen adds: "If Jenny [...] does not spin off into, at least, her own comic books, I shall be surprised."