1. Young Sheldon (2017–2024) – His breakout role Without a doubt, Young Sheldon is the role that catapulted Iain Armitage to stardom.

Iain Armitage has never been a stranger to the spotlight. Armitage is an actor who got his start at a very young age. His first major role was on the hit 2017 HBO series Big Little Lies, landing ...

Iain Armitage is looking towards the future by taking a walk down memory lane. In a series of photos shared to his Instagram Stories, the Young Sheldon star, 15, revealed that The Big Bang Theory ...

Raegan Revord, who played Missy Cooper in "Young Sheldon," has had quite the real-life evolution from "Modern Family" guest ...

Iain Armitage, 16, talks about the end of "Young Sheldon," which aired its finale Thursday on CBS, and what's next for him.

Iain Armitage's First TV Role Iain Armitage/Instagram Iain Armitage and Mariska Hargitay. Before Young Sheldon, Iain made his acting debut in a January 2017 episode of Law & Order: Special Victims ...

Courtesy of Iain Armitage/Instagram Armitage appeared in shows such as Law & Order and Big Little Lies before making his debut on the spinoff of The Big Bang Theory, Young Sheldon, in 2017.

Iain Armitage starred in Warner Bros. production ‘Young Sheldon’ from 2017-2024 By Web Desk August 16, 2025 ‘Young Sheldon’ star Iain Armitage reveals heartfelt gift from Warner Bros.

Iain Armitage had some pretty big shoes to fill on Young Sheldon so the audition process was especially difficult for the young performer.

“Iain Armitage, star of CBS’ ‘Young Sheldon,’ what are you doing here?” Colbert asked as his surprise guest popped out from a rack of suits.