Okay, so how's this...

[caz963]

... for a cracked-out theory?



The little girl isn't Jenny, as I've seen suggested, but Jenny's daughter.

Which makes her the Doctor's granddaughter.

So...

Yep. It's Susan ;-)

Comments

[calliopes_pen]

And the one where she's Donna, after getting her memory back, regenerating, and de-aging, while at the same time being Romana. That was an extremely short-lived theory, from what I saw.