As much as we adore the adult cast of This Is Us (looking at you, Milo Ventimiglia), we have just as much admiration for the children on the show. Six talented actors play younger versions of the Pearson triplets, but you probably didn't know that some of the young stars are actually older than their onscreen characters in real life. Read on to see the major age differences in the cast ahead.
Chat with us on Facebook Messenger. Learn what's trending across POPSUGAR.