That was over 6 years ago in 2016.
Today he is 40, and has starred in 37 movies in total, 8 since Deadpool was released.
In Deadpool, I think T.J. Miller looks:
Deadpool scores 7.5 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.