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