• Guest Starring: Megan Mullally (Alecto / Mrs. Dodds), Virginia Kull (Sally Jackson), Timm Sharp (Gabe Ugliano)
• And: Glynn Turman (Chiron / Mr. Brunner)
• Co-Starring: Hiro Kanagawa (Headmaster), Azriel Dalman (Young Percy), Olivea Morton (Nancy Bobofit), Nick Boraine (Voice in Dream), Simon Chin (Super - Eddie), Manoj Sood (Principal), David Beairsto (Social Services Counselor), Athan Irinakis (Martin), Billy Christos, Jr. (Snickering Kid #1), Malcolm Clarke (Snickering Kid #2), Drako Cheng (Bubble Gum Kid), Adam John Patrick Gillese (Kid #2), Mateo Deuma (Kid #3), Peyton Feltham (Nancy's Friend #1), Valencia Budijanto (Nancy's Friend #2)
• Written By: Rick Riordan & Jonathan E. Steinberg
• Directed By: James Bobin

• Guest Starring: Jason Mantzoukas (Dionysus / Mr. D), Charlie Bushnell (Luke Castellan), Dior Goodjohn (Clarisse La Rue), Jason Gray-Stanford (Maron)
• And: Glynn Turman (Chiron / Mr. Brunner)
• Co-Starring: Andrew Alvarez (Chris), Kathleen Duborg (Helena), Threnody Tsai (Sarah), Garfield Wilson (Leneus), Nick Boraine (Voice in Dream), George Moran (Red Team Bully)
• Written By: Rick Riordan & Jonathan E. Steinberg
• Directed By: James Bobin

• Guest Starring: Megan Mullally (Alecto / Mrs. Dodds), Jason Mantzoukas (Dionysus / Mr. D), Timm Sharp (Gabe Ugliano), Jessica Parker Kennedy (Medusa), Charlie Bushnell (Luke Castellan), Dior Goodjohn (Clarisse La Rue)
• And: Glynn Turman (Chiron / Mr. Brunner)
• Co-Starring: Andrew Alvarez (Chris), Threnody Tsai (Sarah), Sara J Southey (Tisiphone), Jennifer Shirley (Oracle), Brooklyn Scotland (Samara), George Moran (Red Team Bully), Darla Fay (Cashier)
• Uncredited: Lin-Manuel Miranda (Hermes)
• Written By: Jonathan E. Steinberg & Monica Owusu-Breen
• Directed By: Anders Engström

• Guest Starring: Virginia Kull (Sally Jackson), Suzanne Cryer (Echidna)
• Co-Starring: Azriel Dalman (Young Percy), Nick Boraine (Voice in Dream), Ryan Cowie (Chaperone), Alessandro Juliani (Transit Cop #1), Ely Jackson (Transit Cop #2), Gayle Yamamoto (Mom), Winson Won (Dad), Julia Lee (Child #1), Joshua Lee (Child #2)
• Written By: Jonathan E. Steinberg & Joe Tracz
• Directed By: Anders Engström

• Guest Starring: Timm Sharp (Gabe Ugliano), Adam Copeland (Ares), Timothy Omundson (Hephaestus)
• Co-Starring: Ryan Cowie (Chaperone), Joyce Robbins (Fate #1), La Nein Harrison (Fate #2), Cindy Piper (Fate #3)
• Written By: Rick Riordan & Jonathan E. Steinberg
• Directed By: Jet Wilkinson

• Special Guest Star: Lin-Manuel Miranda (Hermes)
• Guest Starring: Charlie Bushnell (Luke Castellan), Ted Dykstra (Augustus)
• Co-Starring: Hiro Kanagawa (Headmaster), Jelena Milinkovic (Nereid)
• Written By: Jonathan E. Steinberg & Joe Tracz
• Directed By: Jet Wilkinson

• Guest Starring: Virginia Kull (Sally Jackson), Toby Stephens (Poseidon), Adam Copeland (Ares), Julian Richings (Crusty)
• And: Jay Duplass (Hades)
• Co-Starring: Azriel Dalman (Young Percy), Travis Woloshyn (Charon), Andrew McIlroy (Administrator), Jenaya Ross (Asphodelian)
• Written By: Andrew Miller
• Directed By: Anders Engström

• Guest Starring: Megan Mullally (Alecto / Mrs. Dodds), Lance Reddick (Zeus), Virginia Kull (Sally Jackson), Timm Sharp (Gabe Ugliano), Jason Mantzoukas (Dionysus / Mr. D), Charlie Bushnell (Luke Castellan), Dior Goodjohn (Clarisse La Rue), Adam Copeland (Ares), Toby Stephens (Poseidon)
• And: Glynn Turman (Chiron / Mr. Brunner)
• Co-Starring: Andrew Alvarez (Chris Rodriguez), Threnody Tsai (Sarah), Bola Omodara (Security Guard), Nick Boraine (Kronos)
• Written By: Craig Silverstein
• Directed By: Jet Wilkinson
• Memorium: In Loving Memory of Lance Reddick