DOCTOR: Sorry, I don't know who you are.

ROBERTSON: Oh, really? Cos you must be the only person on the planet that doesn't.

DOCTOR: Are you Ed Sheeran? Is he Ed Sheeran? Everyone talks about Ed Sheeran round about now, don't they?

ROBERTSON: I am not Ed Sheeran. I am Jack Robertson and this is my hotel. Just one hotel in an incredibly successful chain of hotels, which is just one small part of my business portfolio, as featured in Fortune Global 500. Does that ring a bell?

DOCTOR: Should I look impressed right now? Is that impressive?

GRAHAM: He's running for President in 2020.

DOCTOR: Ed Sheeran?