Iain Armitage, born inGeorgiais an American theater critic, and child actor. He is the son of actor Euan Morton and theater producer Lee Armitage.
In 2017, Armitage plays "Ziggy Chapman" in the HBO miniseries Big Little Lies. He will appear in The Glass Castle, a film adaptation of Jeannette Walls' memoir of the same name.
On March 13, 2017, CBS announced that it had ordered to series Young Sheldon, a prequel to the sitcom The Big Bang Theory, starring "Armitage "as the title character.