That was over 5 years ago in 2015.
Today he is 44, and has starred in 54 movies in total, 10 since The Martian was released.
In The Martian, I think Michael Peña looks:
The Martian scores 7.6 out of 10 on The Movie Database.
Michael Peña's first acting role was as 'Bunk' in Running Free, released in 1994 when he was 17.
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