There is an interesting story behind these two guests. The guy was a member of a cultish group called The Lyman Family in Boston. He had an affair with his co-star during the movie and took her back to the group. She didn't like it and left.
A few years later, he and two other members robbed a bank for political reasons. They were caught and he died in prison lifting weights. The girl, Daria Halprin is now a dancing instructor.