how old is the actor who plays young sheldon?

best answer
Sheldon is the titular character of Young Sheldon that audiences had already gotten to know and love from TBBT. Sheldon is one of the smartest child geniuses on TV and the search to find a young actor to follow up Jim Parsons portrayal could not have been easy. Iain Armitage is 14-years-old which makes his fantastic performance even more impressive.