Frederick Chase

Dr. Frederick Chase is a mortal and the father of Annabeth Chase.

History
When Frederick was a young man, he was a brilliant guy who wanted to go to college, but he didn't have any money. His brilliance and wit draws the attention of Athena, who was intrigued by him. She sets up a college fund for him, and he finishes his degree with her help.

Their relationship eventually ended on good terms, and Athena sends him their daughter to him. He is agahst that he now has an infant daughter to care for, and tries to get Athena to take her back, but she sternly tells him that demigods must be raised by their mortal parent.

Frederick then marries a young Asian woman, and they have two sons; Robert and Matthew.

Dr. Chase's family got attacked a lot by monsters a lot due to Annabeth being a Half-Blood. Annabeth eventually imagines that her mortal family resents her for this, and runs away, eventually running into Thalia and Luke. They have many adventures together until they meet Grover, who takes them to Camp Half-Blood. Thalia is killed, and her body is turned into a pine tree.

Annabeth eventually returns home, but leaves when she sees that nothing has changed. Her father sends her his college ring in hopes she will remember him by it and be convinced to come home. She starts to wear his class ring on her necklace with her beads that she earns every year at Camp Half-Blood.

Percy though convinces her to try it again with her family, and she moves in with them again and settles down in New York City.

The Chase family then moved to San Francisco because they offered him a new job there. In The Titan's Curse, he shoots down monsters in his plane, the Sophwith Camal,. He took apart some of Annabeth's celestial weapons and turn them in to ammunition.

Personality
Like Rachel, he is totally cool about being a mortal. He caught the eye of Athena, who was enchanted by his wisdom. He most likely caught it her attention by his fascination with wars and his love for airplanes. He loves Annabeth very much, though he did not want her at first, though that can't not be expected. He didn't know that his friendship with Athena would result in a brain child, and when she came he did not have time to take care of her.

Other
When the Sirens sang to Annabeth, she saw her father, her mother Athena together again, and happy. She saw Luke sitting next to them, patting the ground next to him, asking her to stay.