Jermel Nakia plays "Young William" on This Is Us and does an amazing job. He's so good, in fact, that for the longest time I thought only one actor played the role of William.
It was an awesome surprise to see him at the FYC event for the show. As you can see by my flushed face, it was also the surface temperature of the sun in the room, so in all my pictures I'm as sweaty and hot as I could be. Joy.