William Orville "Bill" Henrickson is a fictional character in the HBO series Big Love, portrayed by Bill Paxton. The protagonist of the series, he is the head of a polygamous family. He is married to three wives, Barbara Henrickson, Nicolette Grant and Margene Heffman. He has fathered nine children with these three women, and a tenth child with Ana.

William Paxton was an American actor and filmmaker. He starred in films such as Aliens (1986), Near Dark (1987), Tombstone (1993), True Lies (1994), Apollo 13 (1995), Twister (1996), Titanic (1997), Mighty Joe Young (1998), and A Simple Plan (1998). He had supporting roles in Weird Science (1985), Edge of Tomorrow (2014), and Nightcrawler (2014).