Guest Stars Glynn Turman as Chiron / Mr. Brunner Charlie Bushnell as Luke Castellan Timm Sharp as Gabe Ugliano Jason Mantzoukas as Dionysus / Mr. D Megan Mullally as Alecto / Mrs. Dodds Dior Goodjohn as Clarisse La Rue Jessica Parker Kennedy as Medusa Co Starring Andrew Alvarez as Chris Threnody Tsai as Sarah George Moran as Red Team Bully Jennifer Shirley as Oracle Darla Fay as Cashier Sara J Southey as Tisiphone Brooklyn Scotland as Samara Uncredited Lin-Manuel Miranda as Hermes