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 Ryan Phuong Tam Guest Star Craig T. Nelson Dale Guest Star Jason Alexander Mr. Lundy Guest Star Wyatt McClure Billy Sparks Guest Star Mary Grill Officer Robin Guest Star Brian Stepanek Mr. Givens Guest Star Sarah Baker Ms. Hutchins Guest Star Danielle Pinnock Ms. Ingram Guest Star Valerie Mahaffey Ms. Macelroy Guest Star Rex Linn Principal Petersen Guest Star London Cheshire Marcus Guest Star L. Emille Thomas Umpire Guest Star Ian Ousley Jeremy Guest Star Chuck Lorre Executive Producer Steven Molaro Executive Producer, Writer Todd Spiewak Executive Producer Steve Holland Writer Maria Ferrari Writer Eric Kaplan Writer Tara Hernandez Writer Jeremy Howe Writer Alex Reid Director