Mr. Dare

William Dare is Rachel Elizabeth Dare's father, and an extremely wealthy businessman who made his fortune by buying land and turning it into malls and subdivisions. He is a major embarrassment to his daughter, Rachel, especially when she meets the god Pan in New Mexico. He tries to make everything better on his daughter by using his money, like suggesting therapy. He has no idea of what Rachel can do and thinks at some times that she is crazy. He also had his daughter go to finishing school. Mr. Dare doesn't care much about his daughter because he's much too busy and doesn't really like Percy, but wants him to go on holiday with Rachel to convince her to go to finishing school. His name begins with a W, as seen in one of Percy's dreams, when he's wearing monogramed pajamas. His company is called Dare Enterprises.

The Last Olympian
Mr. Dare is seen a few times in Percy's dreams. He often refers to Percy as "young man" and goes with his family, Rachel Elizabeth Dare and Mrs. Dare, to their vacation home. He allowed Rachel to invite Percy to vacation with them as an attempt to bribe Rachel to go to a school for society girls. He eventually gets what he wants, as she agreed to go so she could be flown back to New York.