Percy- Harry (Obviously)

Annabeth- Hermione (I know Annabeth and Ginny both date main characters, and I love Annabeth, but she is too high maintenance (like Hermione, who I also like) to be like Ginny, and she and Hermione are both really smart.)

Tyson-Hagrid

Mrs. O'Leary - Fang

Chiron - Dumbledore

Dionysius- Slughorn

Poseidon - James

Hannibal - Buckbeak

Grover- Neville

Zeus - Fudge

Clarisse- Draco

Calypso - Cho

Piper - Lavender

Kronos - Voldemort

Luke - Snape

Travis and Connor - Peeves

Aphrodite - Ludo (helps main character along)

Hera - Bellatrix (REALLY annoying)

Jason - Cedric