Film

No.	Year	Title	Role	Vote Average
1	1988	Biloxi Blues	Additional Voice	63
2	1990	A Shock to the System	Additional Dialogue	64
3	1994	Home of Angels		0
4	1995	Mighty Aphrodite	Chorus (voice)	67
5	2001	Shot in the Heart	Interviewer	56
6	2002	World Trade Center: Anatomy of the Collapse	Narrator	70
7	2003	Up from Zero	Narrator (Voice)	0
8	2003	The World's First Time Machine	Narrator	75
9	2007	Bear Island	Narrator	0
10	2007	National Geographic: Incredible Human Machine	Narrator	71
11	2010	National Geographic - Dino Autopsy	Narrator (voice)	0
12	2010	My 9/11	Narrator (voice)	0
13	2010	The Rise of Black Wolf	Narrator (voice)	100
14	2010	The Rise of Black Wolf	Self - Narrator	90
15	2011	Brutal Killers	Narrator (voice)	0
16	2011	Hunt for the Abominable Snowman	Self - Narrator (voice)	0
17	2011	Betrayed	Tom Young	0
18	2012	Deadliest Volcanoes	Narrator	0
19	2013	Oklahoma's Deadliest Tornadoes		75
20	2014	Why Sharks Attack	Narrator	60
21	2014	Bigger Than T. Rex	Narrator	0
22	2015	Drain the Titanic	Narrator (voice)	72
23	2015	NOVA: Lethal Seas	Self / Narrator	0
24	2015	Chasing Pluto	Narrator	50
25	2015	The Company Man: Protecting America's Secrets	Fred Walker	50
26	2015	CyberWar Threat		80
27	2015	Hitler's Supergun	Narrator	55
28	2016	Himalayan Megaquake		70
29	2016	Destination: Pluto Beyond the Flyby	Narrator	100
30	2016	Jackie	Governor Connally	65
31	2017	Drain The Sunken Pirate City	Narrator	60
32	2017	Eclipse Over America	Self - Narrator (voice)	70
33	2017	Death Dive to Saturn	Narrator	80
34	2017	Drain Alcatraz	Narrator (voice)	68
35	2017	Day the Dinosaurs Died	Narrator	87
36	2019	The Lost City Of Machu Picchu	Narrator (Voice)	63
37	2019	Return to the Moon: Seconds to Arrival		70
38	2019	Pluto and Beyond	Narrator	82
39	2019	Look Who's Driving	Self - Presenter	0
40	2022	Ultimate Space Telescope	Narrator (voice)	70
41		Rise of the Superstorms	Narrator (voice)	80
42	2020	Decoding COVID-19	Narrator	0
43	2020	Touching the Asteroid	Narrator (voice)	60
44	2021	Looking for Life on Mars	Narrator (voice)	73
45	2024	Carolyn Drive	EBS announcer	0
46	2024	Building Stuff	Narrator	0
47		The Great Chicago Fire: A Chicago Stories Special	Voiceover	0

Television

No.	Year	Title	Role	Vote Average
1	1974	NOVA	Narrator	70
2	1974	NOVA	Self - Narrator	70
3	2009	Changing Seas	Narrator (voice)	0
4	2012	Veep	Brian	74
5	2015	Destination: Pluto	Narrator	50
6	2018	Drain the Oceans	Self - Narrator (voice)	74