That was over 3 years ago in 2018.
Today he is 40, and has starred in 37 movies in total, 1 since Ready Player One was released.
In Ready Player One, I think T.J. Miller looks:
Ready Player One scores 7.9 out of 10 on The Movie Database.
T.J. Miller's first acting role was as 'Hudson 'Hud' Platt' in Cloverfield, released in 2008 when he was 26.