NOVA
1974 · Narrator (voice)
Homicide: Life on the Street
1993 · Castleman
Breeders
1986 · Det. Dale Andriotti
The Ultimate Guide
1996 · Narrator
Hit and Run
2009 · Mechanic
Riot on 42nd St.
1987 · Tom Barnes
Citizen Cohn
1992 · Young Doctor
Shot in the Heart
2001 · Moody
Talons of Terror
2000 · Narrator (voice)
Mastodon in your Backyard
2001
Falklands: Flying Devils
Ultimate Mars Challenge
2012 · Narrator
Ice Age Death Trap
Superpride
2008 · Narrator
The World's Biggest Cave
2009 · Himself - Narrator
Winged Wizards of the Night
2005 · Narrator
Inside Animal Minds
2014 · Narrator
Secrets of the Sun
