McKenna Grace as Svetlana Keegan 

"My father is Apollo. The ultimate god of healing, music, archery. . . . that kind of stuff. Nothing important." 

Walker Scobell as Percy Jackson, son of Poseidon

"I'm always safe in the sea." 

Aryan Simhadri as Grover Underwood, Satyr Protector 

"Who's froofy? You're froofy! What's froofy? I think that I need to eat."

Leah Sava' Jeffries as Annabeth Chase

"Thalia was one of the strongest people I ever knew. She fought valiantly, and she met a hero's fate."

Dior Goodjohn as Clarisse La Rue, daughter of Ares 

"Stay out of this, Miss Sunshine."

Charlie Bushnell as Luke Castellan 

"Let her rip." 

Jason Mantzoukas as Dionysus "Mr. D", god of wine and CHB director 

"Yeah, I heard him the first time, Serena Keaton."

Sam Claflin as Apollo, god of archery, healing, music, and poetry

(Remember, Dionysus (excuse me, Mr. D), likes to mess people's names up on purpose.) 

the rest of the cast as their perspective characters. 

Warnings: Cussing