Companions of the Third Doctor
"You really believe in a man who’s helped to save the world twice? With the power to transform his physical appearance? … An alien who travels through time and space in a police box?”
ELEVENTH DOCTOR: These must be the only ones awake; the others must still be in hibernation.
NASREEN: So why did they go into hibernation in the first place?
ELEVENTH DOCTOR: Their astronomers predicted a planet heading to Earth on a crash course. They a built life underground and put themselves to sleep for millennia in order to avert what they thought was the apocalypse. When in reality, it was the moon, coming into alignment with the Earth.
MALOKEH: How can you know that?
ELEVENTH DOCTOR: Long time ago, I met another tribe of homo reptilia — similar, but not identical.
RESTAC: Others of our species have survived?
ELEVENTH DOCTOR: The humans attacked them. They died. I’m sorry.
— Cold Blood