The winner of the 2014 SofaWatch Movie Awards Supporting Actor went to the outstanding Ethan Hawke for his performance in Boyhood.
In the film Ethan plays the character of Dad. The following description of this character is taken from iMDB.
Mason Sr. is Mason Jr.'s biological father. He takes Mason &
Samantha to bowling clubs & trips on weekends. He was a singer.
Ethan has been around for a while now and has had many leading and supporting roles in several films including -
Vincent Freeman in Gattaca
Jesse in Before Sunset
Sgt Jake Roenick in Assault on Precinct 13
Jake Hoyt in Training Day
Jesse in Before Sunrise
Hopefully we will still see Ethan portraying many different characters for several years to come. He is starring in Regression and is currently filming The Phenom.