- The Hills Have Eyes (1977) as Beast
- Salem's Lot (1979) as Trashcan
- I Saw What You Did (1988) as Jack (as Muse)
- The Arrival (1996) as Zeke (as Muse Watson)
- Virus (1999) as Capt. Hadley (as Muse Watson)
- Deep Shock (2003) as Capt. George Benedict
- The Devil's Rejects (2005) as Otis B. Driftwood
- The Bone Eater (2007) as Vernon Kray (as Muse)
- The House of the Devil (2009) as Victor
- Dead Air (2009) as Otis B. Driftwood
- 3 from Hell (2019) as Otis B. Driftwood
- Leatherface (2017) as Jedidiah Sawyer
Television:
- Knots Landing (1980-1981; 1982-1983) as Ben Gibson (as Muse)
- Tales from the Darkside (1984) as Jake
- The New Alfred Hitchcock Presents (1986) as Jack / Mr. Smith
- Miami Vice (1986) as Det. Frank Hackman
- Stingray (1987) as Detective Joe Gant (as Muse)
- Dallas (1988) as The Judge
- The Equalizer (1989) as Clete
- The Hitchhiker (1990) as Ray
- Hunter (1990) as Det. Frank Murphy
- Baywatch (1990) as Captain Mitchell
- The Adventures of Brisco County, Jr. (1993-1994) as John Bly
- Acapulco H.E.A.T. (1994) as Jake "Razor" Dawson (as Muse Watson)
- Diagnosis: Murder (1994) as Sgt. John McBride
- Walker, Texas Ranger (1995-1997) as Charlie Biggs / Lt. Jimmy Tripp (as Muse)
- Millennium (1998) as Frank Martin
- The Outer Limits (1999) as Sheriff George Watkins (as Muse Watson)
- Charmed (2000) as Inspector Rodriguez
- The X-Files (2000) as Agent Spender (as Muse Watson)
- CSI: Miami (2004) as Henry Darius
- The King of Queens (2005) as Coach Lou Malnatti
- Without a Trace (2006) as Sheriff Lyle Price
- NCIS (2006) as Robert "Bob" King
- The Unit (2007) as General Peter Winslow (as Muse Watson)
- Criminal Minds (2007-2008) as Ben Foster (as Muse Watson)
- Sons of Anarchy (2008-2014) as Cameron Hayes (as Muse Watson)
- Fringe (2009) as Agent Foster
- Castle (2010) as Billy Jenkins (as Muse Watson)
- Hawaii Five-0 (2011) as Detective Lieutenant Charles Williams
- True Blood (2012) as Earl Stackhouse (as Muse Watson)
- Dallas (2012) as Harris Ryland (as Muse Watson)
- Justified (2012) as Ed Ginley
- The Walking Dead (2012-2013) as Merle Dixon (as Muse Watson)
- Salem (2015) as Magistrate Hale (as Muse Watson)
- The Mindy Project (2015) as Santa Claus
- Once Upon a Time (2016) as The Black Knight (as Muse Watson)