Tim Shaw: Who are you?
13th Doctor: Oh, yes, I'm glad you asked that again. Bit of adrenaline, dash of outrage, and a hint of panic knitted my brain back together. I know exactly who I am. I'm the Doctor. Sorting out fair play throughout the universe. Now, please, get off this planet while you still have a choice.
Graham O'Brien: You don't look like an alien.
13th Doctor: You should have seen me a few hours back. My whole body changed. Every cell in my body burning. Some of them are still at it now, reordering, regenerating.
Grace: Sounds painful, love.
13th Doctor: You have no idea. There's this moment where you're sure you're about to die and then you're born. It's terrifying. Right now I'm a stranger to myself. There's echoes of who I was and a sort of call towards who I am. And I have to hold my nerve and trust all these new instincts. Shape myself towards them. I'll be fine. In the end. Hopefully. Well, I have to be, because you guys need help and if there's one thing I'm certain of, when people need help, I never refuse. Right? This is going to be fun.