- as Sheldon Cooper
- as Mandy McAllister
- as Mary Cooper
- as Dr. Linkletter
- as George Cooper, Sr.
- as President Hagemeyer
- as George Cooper Jr.
- as Jim McCallister
- as Missy Cooper
- as Audrey McCallister
- as Connie 'Meemaw' Tucker
- as Nathan
- as Sheldon Cooper (Voice)
- as Nigel
The information provided is incomplete. You can help OMDB by expanding it.
Watch "Young Sheldon > A Tougher Nut and a Note on File":