Madison “Maddie” Vale: A blonde, blue-eyed girl with freckles who wears an elaborate pink-and-black gothic princess gown and feathered masquerade mask. She claims she's not like other girls, criticizes girls who wear too much makeup, and insists she hates drama while constantly creating it. Their dynamic: The twins constantly praise one another, compete for attention, and pretend their coordinated outfits and dramatic entrances are spontaneous. When confronted, they act deeply offended and insist everyone is being unfair. Their greatest weakness: Being ignored. Nothing bothers them more than someone who refuses to take their antics seriously.

Mason Vale: A chestnut-haired, green-eyed boy dressed in a black velvet suit with silver embroidery and a raven mask. He calls himself a nice guy and a misunderstood gentleman, complaining that girls always choose bad boys over him.Their dynamic: The twins constantly praise one another, compete for attention, and pretend their coordinated outfits and dramatic entrances are spontaneous. When confronted, they act deeply offended and insist everyone is being unfair. Their greatest weakness: Being ignored. Nothing bothers them more than someone who refuses to take their antics seriously.

Morrigan Elara “Mori” Blackwood Age: 17, Greek demigod Divine Parent: Hecate Affiliation: Camp Half-Blood, Hecate Cabin Appearance: Raven-black hair with violet streaks, pale skin, and glowing violet eyes when using magic. Wears gothic, dark-academia clothing, combat boots, silver jewelry, and occult accessories. Personality: Intelligent, sarcastic, independent, mischievous, and fiercely loyal. Challenges authority, values free will, and protects those she cares about.

Percy Jackson Son of Poseidon. A powerful Greek demigod who controls water, communicates with horses, and excels in sword combat. Brave, loyal, and fiercely protective. Dating Annabeth Chase

Annabeth Chase Daughter of Athena. The team's strategist, architect, and problem-solver, known for intelligence, courage, and determination. Dating Percy Jackson

Piper McLean Daughter of Aphrodite. Uses charmspeak to influence others, but her greatest strength is her courage and ability to understand people. Dating Jason Grace

Jason Grace Son of Jupiter, the Roman aspect of Zeus. A disciplined leader who can command lightning and wind and fight with a gladius or spear. Dating piper

Frank Zhang Son of Mars, the Roman war god. A skilled archer and fighter who can shapeshift into different animals because of his unusual ancestry. Dating Hazel

Hazel Levesque Daughter of Pluto, the Roman god of the underworld. Can manipulate precious metals and gems and navigate the Mist, while struggling with her past and her dangerous abilities. Dating Frank

Leo Valdez Son of Hephaestus. An inventive mechanic and engineer who can create fire. He builds and pilots the Argo II and often hides insecurity behind humor.