Iain Armitage

Iain Armitage is an American child actor and theater critic. He is best known for his starring roles as Ziggy Chapman in Big Little Lies and as Sheldon Cooper in Young Sheldon.

Young Sheldon
Big Little Lies

The Glass Castle
I'm Not Here

Scoob
Paw Patrol: The Movie

The Big Bang Theory · S12, E10

The VCR Illumination

Sheldon seeks advice from his younger self.
Law & Order: Special Victims Unit · S18, E8

Chasing Theo

A six-year-old boy disappears during a wild drug party thrown by his mother. The case causes Benson to question her own role as a mother.
Ghosts · S5, E16

Woodstone Royale

Needing to raise a large sum of money to pay the IRS, Sam and Jay agree to host a high-stakes poker game at the mansion; in an act of generosity, Isaac gifts Jay's recliner to the basement ghosts.

Ghostwriter

Iain Armitage

Shows

Movies

Kids & Family

Guest Appearances

Credited For