Sally is a warm, kind, and caring mother who raised her son full of compassion and love. Sally is protective of her son. For instance, she sent Percy to Yancy Academy and the other boarding schools. She only married Percy's stepfather, Gabe Ugliano because it was the only way to mask Percy's scent and protect her from other monsters. Sally is extremely supportive of Percy, as she tells him that he is getting older and doesn't need to ask him for permission. She encouraged him to go on the quest to save Annabeth. She has a smile as warm as a quilt, blue eyes that sparkle and change color in the light, and long brown hair with a few streaks of gray in it. Age 40.

Paul Blofis is the stepfather of Percy Jackson and an English teacher at Goode High School. He is currently married to Sally Jackson, with whom he had a daughter, Estelle Blofis. Brown hair, brown eyes. Age 40.

Estelle Blofis is the daughter of Paul Blofis and Sally Jackson, and is the younger half-sister of Percy Jackson. Brown hair, blue eyes.

Tan skin, disheveled, black hair, and sea-green eyes. Son of Poseidon. Percy is a very kind-hearted, brave-spirited, natural leader. brave, sarcastic, smart sense of humor, and laid-back demeanorquite smart, but seems to act dumb. Somewhat short-tempered. He feels responsible for everyone and anything which goes wrong. Obtuse, doesn't always see the obvious, dyslexia, ADHD. Fatal flaw is excessive personal loyalty.

Tan skin, long blond curls, grey eyes. Daughter of Athena. Genius, wise and very witty, calculating, loves architecture, soft side for those who seek knowledge, philosophical, strong-minded and stubborn, shows bravery, courage, and dauntlessness, kind-hearted, harsh and judgmental during first meetings, but she is very loyal.