The night-shift doctor warns Troy away from the freezing cryopods and says he remembers everything because the medicine affects only regrets.
The night-shift doctor tells Troy that he cannot remain among the cryopods because he will freeze. In their conversation, the doctor acknowledges that he remembers everything and describes their work as saving the world. He says the medicine affects only regrets and that some people have none.
He also tells Troy that people like him are good to have in charge.
He is the doctor on night duty who speaks with Troy near the cryopods and offers an explanation of the medicine’s effect on memory.