Acclaimed child actor who gained critical attention for his performance as Jack in the 2015 film Room. He had previously been featured in the film Before I Wake and provided the voice of Blue Winslow in The Smurfs 2. In 2017, he starred in the films Wonder and The Book of Henry.
His made his feature film debut in 2013 for The Smurfs 2. That year, he appeared in an episode each of the television shows Motive and Mr. Young.
He was cast in 2016 films Shut In and Burn Your Maps.
He is the younger brother of Emma Tremblay and the older brother of Erica Tremblay.
He played the on-screen son of Brie Larson in the 2015 film Room.