1979 - 1982 - CHiPs (Officer Jebediah Turner)
1986 - 1987 - Days of Our Lives (Jimmy)
1987 - 1994 - Star Trek: The Next Generation (Lt. (j.g.)/Lt. Worf)
1995 - 1999 - Star Trek: Deep Space Nine (Lt. Commander Worf)
1996 - 2000 - Superman (John Henry Irons/Steel)
1996 - 1996 - Wing Commander Academy"(Alien)
1997 - ???? - Johnny Bravo (Narrator, Additional Voices)
Tv Mini Series and Specials:
1991 - Star Trek 25th Anniversary Special (Himself)
1995 - Star Trek: The Next Generation - A Final Unity (Lt. Commander Worf)
1995 - Journey's End - The Saga of Star Trek: The Next Generation (Himself)
1999 - Ultimate Trek: Star Trek's Greatest Moments
1999 - Star Trek: The Next Generation Companion (Lieutenant Worf)
1999 - Star Trek: Deep Space Nine Companion ( Lt. Commander Worf)
Tv Movies:
1995 - Amanda and the Alien (Lt. Vint)
1998 - The Girl Next Door (Lieutenant Steve Driscoll)
Voice Acting and Naration:
1993 - Aladdin (TV Series) (Additional Voices)
1994 - The Fantastic Four (TV Series) (voice) .... Gorgon)
1994 - Gargoyles (TV Series) (voice) (Coldstone and Taurus)
1994 - Gabriel Knight: Sins of the Fathers (voice) (Dr. John)
1996 - Captain Simian & The Space Monkeys ((TV Series) (voice) (Nebula)
1996 - Virtual Combat (voice) (Virtual Voice of Dante)
1996 - Star Trek: Klingon (voice) (Klingon language speaker)
1996 - The Savage Dragon (TV Series) (voice) (Additional Voices)
1996 - Cow and Chicken (TV Series) (voice) (Additional Voices)
1998 - Gargoyles: Brothers Betrayed (voice) (Coldstone)
1997 - Star Trek: Generations (voice) (Lieutenant Worf)
1998 - Hercules (TV Series) (voice) (Minotaur)
1998 - Fallout 2: A Post-Nuclear Role-Playing Game (voice) (Marcus/Special Agent Frank Horrigan)
1999 - I Am Weasel (TV Series) (voice) (Weasel/Additional Voices)
1999 - Star Trek: Deep Space Nine - The Fallen (voice) (Lt. Commander Worf)
1999 - Star Trek: Armada (voice) (Ambassador Worf)
2001 - Star Trek: Away Team (voice) (Ambassador Worf)
Movies:
1976 - Rocky (uncredited) (Apollo Creed's bodyguard)
1977 - Demon Seed (uncredited) (Bit)
1985 - Jagged Edge ( Dan Hislan)
1991 - Star Trek VI: The Undiscovered Country (Colonel Worf)
1994 - Star Trek: Generations (Lt. Commander Worf)
1995 - Timemaster (Chairman)
1995 - Mission Critical (Commander Dana)
1996 - Menno's Mind (Simon)
1996 - Star Trek: First Contact (Lt. Commander Worf)
1998 - Star Trek: Insurrection (Lt. Commander Worf)
1999 - Prophet's Game, The (Bob Bowman)
1999 - Hercules: Zero to Hero (Minotauf)
2000 - Shadow Hours (Det. Thomas Greenwood)
2000 - Star Trek: Invasion (Lieutenant Commander Worf)
2000 - Mach 2 (Rodgers)
2001 - Ali (Black Pilot)
2001 - Killing Castro (Doctor Ordoz)
2001 - The Gristle
2001 - Face Value (Hitman)
2001 - Emperor: Battle for Dune (Duke Achillus)
2002 - The Santa Clause 2
2002 - Star Trek: Nemesis (Lt. Commander Worf)
Producer:
1993 - Star Trek: Deep Space Nine (ep.: In the Cards")
2001 - Enterprise