I didn’t watch the James Corden show, but in it Harry all but gave his stamp of approval to the Crown, and thus to how it portrays his father as a villain. That is unforgivable, and just incredibly disappointing. One day, I fear, Harry will awake up missing his father - and he won’t be able to apologize, or explain, or tell him he loves him. He regrets to this day the fact that he rushed his mum off the phone before she was killed. Does he really want to experience that again? Same for his feud with William, except H seems to be aiming his daggers at his father. I think he knew exactly how the interview would come off...
I think he is most angry at charles, certianly - whereas with William, he's angry but it is partly reactional to William. I think that Will hasn't hidden that he's pretty cross wiht his brother and Harry of course will lash out in return. But the big anger seems to be with Charles.