His Notable Roles include:
- Ajax in The Warriors (1979); he reprised the role for the video game (2005)
- Albert Ganz in 48 Hrs. (1982)
- Dutch Schultz in The Cotton Club (1984)
- Creb in The Clan of the Cave Bear (1986); based on the book.
- Gentry in Drugstore Cowboy (1989)
- McQueen in Session Man (1991)
- Max Shady in Fatal Instinct (1993)
- Jack Duff in Miracle on 34th Street (1994)
- Block Warlord in Judge Dredd (1995)
- Lord Raiden in Mortal Kombat: Annihilation (1997)
- Richard in Sex and the City (2001 - 2004)
- FBI Agent Ray Cumberland in Blade: Trinity (2004)
- Meier in Battlestar Galactica (2003) (2005)
- Hawkman, Shadow Thief/Katar Hol, and the Lead Manhunter in Justice League (Unlimited) (2005 - 2006)
- Harry Morgan in Dexter (2006 - 2013)
- Black Mask in The Batman (2006 - 2008)
- Tom Benton in Criminal Minds (2009)
- Walter Hardy/The Cat/The Burglar in The Spectacular Spider-Man (2009)
- Two-Face in Batman: The Brave and the Bold (2009 - 2010)
- Vilgax in Ben 10: Alien Force (2009 - 2010) and Ben 10: Ultimate Alien (2011 - 2012)
- Randall Priest in NUMB3RS (2010)
- James Ermine in FlashForward (2009) (2010)
- Giuseppe Salvatore in The Vampire Diaries (2010)
- Sideswipe in Transformers: Dark of the Moon (2011) and Transformers: The Ride
- Rickshaw in All Superheroes Must Die (2011)
- Ace Speck and Butch Pooch in Django Unchained (2012)
- Silver Monkey in Beware the Batman (2013 - 2014)
- Tonraq in The Legend of Korra (2013 - 2014)
- James Evans in Grey's Anatomy (2013 - 2014)
- Frank Gordon in Gotham (2017)
- John Kordjak ("Kodiak") in The Path (2017)
- Peter Gambi in Black Lightning (2018) (2018 - 2021)
