AWKS ALERT. Well, at least you know he's a Game of Thrones fan... why else would he call Kit 'Jon' during an interview? As for Kit's reaction, well, it was typically Haringtonesque. "It happens."
As for what the interview is all about, you can watch it in full below. It includes such topics as the well dodgy pilot to GOT, as well as his latest venture in a play about Doctor Faustus - a stage magician who sold his soul to the Devil (he run starts in April, if you happen to be in London around April), and how he's only ever been known for one character...
As you can see, Dr. Faustus is keeping 'Jon Snow's' hair do. Nope, we'll NEVER give up hope - despite him crushing our dreams by confirming (yet again) that Jon Snow is definitely dead. "But his spirit may live on".