Okay, this is really hard. I'm probably going to mess this up---BIG TIME---but whatever...

Percy Jackson- Logan Lerman (IF HE LOOKED YOUNGER!!! AND NOT AS RUDE TO HIS MOM!)

Annabeth Chase- Alexandra Daddario. I think she made a good Annabeth, as long as she looked younger, and got her hair color and eye color right.

Grover Underwood- I got no one. Sorry....

Luke Castellan- Jake Abel. They did okay! (for once)

Silena Beauregard- Selena Gomez. NOT BECUASE OF HER NAME!!! but because I feel like she'd be able to capture the character. 

Charles Beckendorf- Dayo Okeniyi. He's the guy that played Thrush( I think that's his name--whoever was in District 11 with Rue) in Hunger Games. 

Clarisse La Rue- Leven Rambin. I've changed my mind. Re-watched the movie..gotta say...she made an OKAY Clarisse.

Thalia Grace- Kaya Scodelario--If her hair was shorter, and she was covered in makeup. Idk, I just think she'd look okay.

Nico Di Angelo- Yeah....I got nothin.

Bianca Di Angelo- Freya Navor. ONLINE!!!! But if her hair was darker....yes. I can imagine this.

Rachel Elizabeth Dare- Jane Levy. Found her online. Closest I could come!

Zoe Nightshade- Shelley Hennig. Again, found her online. She fit the image in my head!

Tyson- No perfect matches. 

Sally Jackson- DEFINITELY no perfect matches. Nothing can ever best the sweet mother described in the books. EVER.