List of Percy Jackson and the Olympians characters
Dr. Frederick Chase: Annabeth's father and he first appears in The Titan's Curse. He allows Percy, Thalia, Zoë, and Grover to borrow his car to drive to Mt. Tamalpais (Mount Othrys). Annabeth's father is a professor who knows a lot about war. He also owns a plane. He and his daughter have had a lot of problems in the past, which is why she ran away home when she was seven years old. He lives in San Francisco with his wife and two sons. In The Titan's Curse, he helps Annabeth and Percy battle Atlas and his troops.