04/16/2015 08:01 pm ET Updated Dec 06, 2017

Bill Paxton Learns of His Revolutionary Past On 'Who Do You Think You Are?'


(courtesy of TLC)

Actor Bill Paxton is featured this Sunday (April 19 at 10/9c on TLC) on Who Do You Think You Are? and digs into the paternal half of his family tree. He begins by solving a long-standing mystery by determining that he is indeed related to Texan hero Sam Houston -- a particularly timely discovery since he just happens to be portraying him in a movie coming out next year.

Then he moves on to an intriguing 4th great-grandfather who served as a spy during the Revolutionary War. What more can he learn about this ancestor? Watch this sneak peek to find out: