Iain Armitage (/ˈiːən/; born July 15, 2008) is an American teen actor. He is known for starring as Sheldon Cooper in Young Sheldon, a prequel to The Big Bang Theory, and Ziggy Chapman in Big Little Lies. In 2018, Armitage received the Young Artist Award for Best Performance in a TV Series – Leading Young Actor for the former role. He also provided the voice for young Shaggy Rogers in Scoob! (2020), and for the police puppy Chase in PAW Patrol: The Movie (2021).

Early life
Armitage resides in Arlington, Virginia, and is the son of the actor Euan Morton, who was born in Falkirk, Scotland, and theater producer Lee Armitage. He is the grandson of former United States Deputy Secretary of State, Richard Lee Armitage by his daughter Lee.