John Gallagher Jr. was 30 in 10 Cloverfield Lane when he played the character 'Emmett DeWitt'.
That was over 8 years ago in 2016.
Today he is 39, and has starred in 26 movies in total, 13 of those since 10 Cloverfield Lane was released.
In 10 Cloverfield Lane, I think John Gallagher Jr. looks: