“Suze, your whole life,you've always made the right decisions. Not necessarily the easiest ones. The right ones. Don't mess that up now, when you're facing what's probably the most important decision you'll ever have to make.”
— Peter Simon to his daughter,Suze.

Peter Simon is Susannah's deceased father. He visited Suze even after she moved to California, a thing which annoyed her. He did not like Jesse at first, but later, as it turned out in Heaven Sent, the reason why he did not move on was that he was meant to help Susannah and Jesse.