Greg Diefenbach

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Credits
32 titles

Past Film & Video (1 title)	Budget	Opening Weekend	Gross (US & Canada)	Gross (Worldwide)
The Natural History of the Chicken (2000) Supervising Producer: Devillier Donegan Enterprises Supervising Producer: Devillier Donegan Enterprises See fewer

Past Television (30 titles)	Episodes
Battlefield America (2025) (TV Mini-series) - Executive Producer (3 episodes, 2025) Executive Producer (3 episodes, 2025) See fewer Chickamauga (Apr 10, 2025) Season 1, Episode 3 - Executive Producer Executive Producer See fewer See more See fewer Loading	3
Nightmare Next Door (2011–2016) (TV Series) - Narrator (27 episodes, 2011) Narrator (27 episodes, 2011) See fewer Death Takes a Toll (Sep 30, 2016) Season 10, Episode 5 - Narrator Narrator See fewer See more See fewer Loading	27
Nature (1998–2006) (TV Series) - Supervising Producer (9 episodes, 2000), Co-producer (2 episodes, 2004), Executive Producer (1 episode, 1998) Supervising Producer (9 episodes, 2000), Co-producer (2 episodes, 2004), Executive Producer (1 episode, 1998) See fewer Murder in the Troop (Apr 2, 2006) Season 24, Episode 10 - Supervising Producer Supervising Producer See fewer See more See fewer Loading	12
Catherine the Great (2005) (TV Movie) - Executive Producer Executive Producer See fewer
Empires: Holy Warriors - Richard the Lionheart and Saladin (2005) (TV Movie) - Producer Producer See fewer
Universum (2004) (TV Series) - Producer: DDE (1 episode, 2004), Co-producer (1 episode, 2004) Producer: DDE (1 episode, 2004), Co-producer (1 episode, 2004) See fewer Kuba - Juwel der Karibik (Nov 23, 2004) Producer: DDE Producer: DDE See fewer Die Gorillas meines Großvaters (May 18, 2004) Co-producer Co-producer See fewer	2
Japan: Memoirs of a Secret Empire (2004) (TV Mini-series) - Supervising Producer (3 episodes, 2004) Supervising Producer (3 episodes, 2004) See fewer The Return of The Barbarians (Jun 9, 2004) Season 1, Episode 3 - Supervising Producer Supervising Producer See fewer See more See fewer Loading	3
Medici: Godfathers of the Renaissance (2004) (TV Mini-series) - Supervising Producer (4 episodes, 2004) Supervising Producer (4 episodes, 2004) See fewer Power vs Truth (Feb 18, 2004) Season 1, Episode 4 - Supervising Producer Supervising Producer See fewer See more See fewer Loading	4
Empires: Peter & Paul and the Christian Revolution (2003) (TV Movie) - Supervising Producer Supervising Producer See fewer
Kingdom of David: The Saga of the Israelites (2003) (TV Movie) - Supervising Producer: Devillier Donegan Enterprises Supervising Producer: Devillier Donegan Enterprises See fewer
The Living Edens (2002–2003) (TV Series) - Supervising Producer (4 episodes, 2002) Supervising Producer (4 episodes, 2002) See fewer Arctic Oasis: Canada's Southampton Island (Dec 21, 2003) Supervising Producer Supervising Producer See fewer See more See fewer Loading	4
Martin Luther (2002) (TV Movie) - Supervising Producer: Devillier Donegan Enterprises Supervising Producer: Devillier Donegan Enterprises See fewer
Young Dr. Freud (2002) (TV Movie) - Supervising Producer: Devillier Donegan Enterprises Supervising Producer: Devillier Donegan Enterprises See fewer
The Power of Play (2002) (TV Movie) - Supervising Producer Supervising Producer See fewer
Mummies Revealed (2001) (TV Movie) - Special Thanks Special Thanks See fewer
Empires: Egypt's Golden Empire (2001) (TV Mini-series) - Supervising Producer: Deviellier Donegan Enterprises (3 episodes, 2001) Supervising Producer: Deviellier Donegan Enterprises (3 episodes, 2001) See fewer The Last Great Pharaoh (Nov 18, 2001) Season 1, Episode 3 - Supervising Producer: Deviellier Donegan Enterprises Supervising Producer: Deviellier Donegan Enterprises See fewer See more See fewer Loading	3
Queen Victoria's Empire (2001) (TV Series) - Supervising Producer: Deviellier Donegan Enterprises (4 episodes, 2001) Supervising Producer: Deviellier Donegan Enterprises (4 episodes, 2001) See fewer The Scramble for Africa (Feb 4, 2001) Season 1, Episode 4 - Supervising Producer: Deviellier Donegan Enterprises Supervising Producer: Deviellier Donegan Enterprises See fewer See more See fewer Loading	4
Lost Liners (2000) (TV Movie) - Supervising Producer: For Devillier-Donegan Enterprises Supervising Producer: For Devillier-Donegan Enterprises See fewer
Napoleon (2000) (TV Mini-series) - Supervising Producer: Devillier Donegan Enterprises (4 episodes, 2000) Supervising Producer: Devillier Donegan Enterprises (4 episodes, 2000) See fewer The End (Nov 15, 2000) Season 1, Episode 4 - Supervising Producer: Devillier Donegan Enterprises Supervising Producer: Devillier Donegan Enterprises See fewer See more See fewer Loading	4
Empires: The Greeks - Crucible of Civilization (2000) (TV Mini-series) - Supervising Producer (1 episode, 2000) Supervising Producer (1 episode, 2000) See fewer The Revolution (Feb 9, 2000) Season 1, Episode 1 - Supervising Producer Supervising Producer See fewer	1
Building Pyramids (1999) (TV Movie) - Executive Producer Executive Producer See fewer
Journey Into Amazonia (1999) (TV Series) - Supervising Producer: Devillier Donegan Enterprises (3 episodes, 1999) Supervising Producer: Devillier Donegan Enterprises (3 episodes, 1999) See fewer The Big Top (1999) Season 1, Episode 3 - Supervising Producer: Devillier Donegan Enterprises Supervising Producer: Devillier Donegan Enterprises See fewer See more See fewer Loading	3
Why Dogs Smile & Chimpanzees Cry (TV Series) - Supervising Producer Supervising Producer See fewer
Life Beyond Earth (1998) (TV Movie) - Supervising Producer Supervising Producer See fewer
Panama Canal: The Eighth Wonder of the World (1998) (TV Movie) - Supervising Producer: Devillier Donegan Enterprises Supervising Producer: Devillier Donegan Enterprises See fewer
Egypt: Secrets of the Pharaohs (1997) (TV Movie) - Researcher Researcher See fewer
Mysteries of Deep Space (1997) (TV Movie) - Supervising Producer Supervising Producer See fewer
Cuba's Lost Treasure (1993) (TV Movie) - Associate Producer Associate Producer See fewer
National Geographic Explorer (1991) (TV Series) - Associate Producer (1 episode, 1991) Associate Producer (1 episode, 1991) See fewer Wildlife Wars USA: Bears Under Siege Associate Producer Associate Producer See fewer	1
When the Earth Quakes (1990) (TV Movie) - Associate Producer Associate Producer See fewer

See all past television

Self (1 title)
Nightmare Next Door (2011–2015) (TV Series) - Self - Narrator (voice) (9 episodes, 2011) Self - Narrator (voice) (9 episodes, 2011) See fewer Grudge Bare (Dec 20, 2015) Season 5, Episode 18 - Self - Narrator (voice) Self - Narrator (voice) See fewer See more See fewer Loading

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