Acting
Law & Order: Special Victims Unit
1999 · Kenneth Heints
Buffy the Vampire Slayer
1997 · Mr. Miller
Law & Order
1990 · Dr. Dennis Colthorp
Bull
2016 · Keith O'Leary
Ugly Betty
2006 · Narrator (voice)
Life After People: The Series
2009 · Self - Narrator
Picket Fences
1992 · Timothy Malone
Nature
1982 · Narrator (voice)
Nostradamus: 2012
2009 · Narrator (voice)
The Third Reich: The Rise & Fall
2010 · Narrator (voice)
Relativity
1996 · Guidance Counselor
Journey to 10,000 BC
Portugal: Wild Land on the Edge
2022 · Narrator (voice)
One Day: A Musical
2014 · YouTuber #3
Morality
2014 · Dr. Albert Burnes
Secret Access: The Vatican
2011 · Narrator
When Aliens Attack
2011 · Narrator (voice)
Forgotten Planet
2011 · Himself - Narrator
Who Really Discovered America?
2010 · Narrator
Art of War
Holy Grail in America
Aquarium
2007 · Mr. Portnoy
