If Sara Kingdom counts, Donna counts.
I don’t count Sara Kingdom, Katarina or Kamelion. However, as I also think Susan is really the Doctor’s granddaughter and that all the hoohah about Time Lords reproducing asexually is a bunch of B.S. (or load of bollocks, take your pick) made up by basement-dwelling fanboys, you can take my opinion with a grain of salt.
Besides, if I count Donna, I have to count H.G. Wells, and I don’t think any of us wants to invoke “Timelash.”
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