Doctor 10 with the Fifth Doctor. (In real life, this is Davids father in law- Peter Davison is Georgia Moffatts dad!) I believe he is also David's first Doctor, as in, the one he grew up watching. (That's gotta be one heck of a family reunion.
Did anyone else notice that while this lady (supposedly the Doctor's mom) was covering her face, so was the lady on the other side of what's-his-bucket? Kind of reminiscent of the weeping angels, don't you think?
“The Doctor: Doctor Song, you've got that face on again. River: What face? The Doctor: The "He's hot when he's clever" face. River: This is my normal face. The Doctor: Yes it is. River: Oh, shut up. The Doctor: Not a chance.