Iain Armitage Sheldon Actor Zoe Perry Mary Actor Lance Barber George Sr. Actor Annie Potts Meemaw Actor Montana Jordan Georgie Actor Raegan Revord Missy Actor Jim Parsons Adult Sheldon Narrator, Executive Producer Wallace Shawn Dr. John Sturgis Guest Star Mckenna Grace Paige Guest Star Andrea Anders Linda Guest Star Josh Cooke Barry Guest Star Ella Anderson Erica Guest Star Chuck Lorre Executive Producer, Writer Steven Molaro Executive Producer, Writer Todd Spiewak Executive Producer David Bickel Writer Damir Konjicija Writer Dario Konjicija Writer Tara Hernandez Writer Mark Cendrowski Director