My wife and I went to RetroCon in Oaks, PA, which is only about 30 minutes away from us. We both mainly went to meet William Katt - me because of House and Carrie, and her because of his appearance in the video adaptation of Pippin. She watched it on loop with her mom when she was a kid and it holds really, really great memories for her. He was the nicest guy and spent a good amount of time talking with everyone who waited to meet him. Here is the House poster he signed for me, my wife with him, and a video of her talking to him about Pippin.