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 Craig T. Nelson Dale Guest Star Mckenna Grace Paige Guest Star Emily Osment Mandy Guest Star Caleb Emery Darren Guest Star Ivan Mok Oscar Guest Star Chuck Lorre Executive Producer, Writer Steven Molaro Executive Producer, Writer Todd Spiewak Executive Producer Jeremy Howe Writer Eric Kaplan Writer Steve Holland Writer Connor Kilpatrick Writer Alex Reid Director