William "Bill" Paxton is an American born actor and film director.
His film debut was 1975's Crazy Mama. He rose to stardom after being in movies like Apollo 13, Twister, and True Lies.
Unfortunately, his career as a musician never took off, but he was in a rock band called Martini Ranch back in the late eighties.
It is easy to get Paxton confused with Bill Pullman - but, as his fourth season on Big Love is about to start, it is easy to say he has truly cemented his place in many fans' hearts.