Guest Stars Cara Buono as Karen Wheeler Joe Chrest as Ted Wheeler Jamie Campbell Bower as Henry Creel / Vecna Catherine Curtin as Claudia Henderson Amybeth McNulty as Vickie Dunne Joseph Quinn as Eddie Munson Mason Dye as Jason Carver Eduardo Franco as Argyle Myles Truitt as Patrick McKinney Tristan Spohn as Two Martie Blair as Young Eleven Christian Ganiere as Ten Elodie Grace Orkin as Angela Gabriella Pizzolo as Suzie Bingham Logan Riley Bruner as Fred Benson Grace Van Dien as Chrissy Cunningham Co Starring Tinsley Price as Holly Wheeler Clayton Royal Johnson as Andy Jennifer Marshall as Susan Hargrove Hunter Romanillos as Chance Hendrix Kate Yancey as Thirteen David Alexander Kaplan as Twelve Lana Jean Turner as Seven Oliver Green as Seventeen Bentley Williams as Fifteen Jessica Arden Napier as Five Chloe Adona as Nine Morgan Gao as Three Sparrow Nicole as Four Jeremiah Friedlander as Fourteen Ethan Green as Sixteen Olivia Sembra as Eighteen Jayden Griffin as Freshman Teammate De'Jon Watts as Six Logan Allen as Jake Alex Wagenman as Mean Boy Gabriella Surodjawan as Mean Girl Samuel Salary as Stern Orderly Elise Falanga as Lenora Neighbor Regina Ting Chen as Counselor Kelley Christopher Strand as Chrissy's Dad Scout Hamrick as Candace Grant Goodman as Freak #1 Candice Rose as Chrissy's Mom Gwydion Lashlee-Walton as Gareth Trey Best as Jeff Brook Sill as Brenda Julia Reilly as Tammy Thompson Shawnee Pourier as Cute Girl Maximo Salas as Wrestler Teen Lucinda Marker as Math Teacher Todd d'Amour as Coach Anna Grace Davidson as Drama Kid Laura Niemi as Mrs. Gracey Gregory Konow as Announcer Hayley Baron as Friendly Girl #2 Elizabeth Becka as Dr. Ellis Abigail R. Townsend as Friendly Girl Haroon Khan as Chess Kid Nicholas Azarian as Kid in Goggles Tristan Peters as Chess Kid #2 David Gibson as Friendly Mailman Sophie Elizabeth Gonzalez as Art Kid Shane Donovan Lewis as Math Kid
