Television
2013 – Blue : WIGS Youtube web-series
2011 – To Appomattox : William T Sherman (8 Part Civil War Mini-Series – To be aired in 2013)
2000-2009 - CSI: Crime Scene Investigation : Gil Grissom
Movies/Documentaries
2012 – Seeking a Friend for the End of the World
2011 – Detachment : Sarge
2005 – Honor & Courage – Tough Guys of the NHL : As himself (Narrator) – Documentary
2004 – This Old Cub : As himself – Documentary
2001 – Wrigley Field – Beyond the Ivy : As himself (Narrator) – Documentary
2001 – Haven
2000 - The Contender : Gov. Jack Hathaway
2000 – The Skulls : Ames Levritt
1999 – Kiss the Sky : Jeff
1998 – The Rat Pack : John F. Kennedy
1998 – The Staircase : Joad
1998 – Gunshy : Jake Bridges
1997 – 12 Angry Men : Juror #12
1996 – The Beast : Whip Dalton
1996 – Mulholland Falls : Jack, Mafia Mobster
1996 – Fear : Steve Walker
1995 – “Fallen Angels” – Good Housekeeping : George
1995 – In the Kingdom of the Blind, the Man with One Eye Is King : Tony C.
1995 – Present Tense, Past Perfect : Jack
1993 – Return to Lonesome Dove : Gideon Walker
1993 – Curacao (aka Deadly Currents) : Stephen Guerin
1992 – Keep the Change : Joe Starling
1992 – Passed Away : Frank Scanlan
1991 – Hard Promises : Joey
1990 – Young Guns II : Pat Garrett
1990 – The Kennedys of Massachusetts : Joseph P. Kennedy
1989 – Cousins : Tom Hardy
1987 – Long Gone (aka Stogies) : Cecil ‘Stud’ Cantrell
1987 – Amazing Grace and Chuck (aka Silent Voice) : Russell
1986 – Manhunter : Will Graham
1986 – The Twilight Zone – Need to Know : Edward Sayers
1985 – To Live and Die in L.A. : Richard Chance
1981 – Thief : Katz & Jammer Bartender
Take a look at Billy’s profile on the Internet Movie Database