Rick Riordan Creator, Executive Producer, Writer, Screenwriter Jonathan E. Steinberg Creator Walker Scobell Percy Jackson Actor Leah Jeffries Annabeth Chase Actor Aryan Simhadri Grover Underwood Actor Charlie Bushnell Luke Castellan Actor Daniel Diemer Tyson Actor Dior Goodjohn Clarisse La Rue Actor Jason Mantzoukas Dionysus, Mr. D. Actor Timothy Simons Tantalus Actor Beatrice Kitsos Alison Simms Actor Sandra Bernhard Anger Actor Virginia Kull Sally Jackson Actor Ryan Beil Assistant Satyr Actor Ken Godmere Meriwether Teacher Actor Brady Tate Meriwether Jerk Actor Mathew Yanagiya Rogue Demigod Dean Actor Cassandra Ebner Rogue Demigod Petra Actor Marlo Marolle Mark Actor Mark Gibbon Joe Bob Actor Dan Payne Marrow Sucker Actor Daniel Cudmore Skull Eater Actor Bert Salke Executive Producer Dan Shotz Executive Producer Ellen Goldsmith-Vein Executive Producer James Bobin Executive Producer, Director Jeremy Bell Executive Producer Jim Rowe Executive Producer Jon Steinberg Executive Producer Monica Owusu-Breen Executive Producer Craig Silverstein Screenwriter Sparks & Shadows Music Jules O'Loughlin Cinematographer