OttselSpy25 wrote: She was mixed with the undefined being "Osgood." In that final scene it's unclear who is who. We presume that our Osgood is the one who's dressed up in the UNIT-lapel-thing but it's made clear that either one could be her.
Except she isn't. In the first place, we are clearly shown who is who. Of course they could be being inaccurate with their definitions, but so could any character ever. Do we create a page at Zygon Leela simply because she might have been a Zygon duplicate all along? And in the second, nothing happens in those final scenes which could be referred to as of uncertain character. Even if Unknown Osgood was pretending to be Bonnie, and vice-versa, the information we glean can either be attributed to the "appropriate" character, or simply left out due to the fact that no specifically attributable lines of dialogue need be referenced on either page. That scene certainly does not meld Bonnie into our unknown being, leaving her a completely separate character.