Young Sheldon is an American period sitcom television series for CBS created by Chuck Lorre and Steven Molaro. The series set in the late 1980s and early 1990s is a spin-off prequel to The Big Bang Theory and begins with the character Sheldon Cooper at the age of nine living with his family in East Texas and going to high school. Iain Armitage stars as young Sheldon alongside Zoe Perry Lance Barber Montana Jordan Raegan Revord and Annie Potts. Matt Hobby was promoted to the main cast starting with the third season. Jim Parsons who portrays the adult Sheldon Cooper on The Big Bang Theory narrates the series and serves as an executive producer.