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 Matt Hobby Pastor Jeff Actor Wallace Shawn Dr. Sturgis Guest Star Craig T. Nelson Dale Guest Star Sarah Baker Ms. Hutchins Guest Star Ryan Stiles Dr. Bowers Guest Star Bob Newhart Professor Proton Guest Voice Cyndi Lauper Self Guest Voice Phil Hendrie Albert Einstein Guest Voice John Mariano Richard Feynman Guest Voice Rich Grosso Croupier Guest Star Christian Benz Belnavis Customer #1 Guest Star Arriane Alexander Customer #2 Guest Star David Fennoy Thoth Guest Star Chuck Lorre Executive Producer Steven Molaro Executive Producer, Writer Todd Spiewak Executive Producer Eric Kaplan Writer Tara Hernandez Writer Jeremy Howe Writer Steve Holland Writer Connor Kilpatrick Writer Jaffar Mahmood Director