Dennis Delaney (born January 29, 1953) is an American writer and actor, and former environmental activist who (in 1980) became the first National Director of Greenpeace USA. He is a graduate of the University of North Carolina School of the Arts, and the University of California, Santa Cruz.
In 1977 Delaney assumed the role of Research Director in the newly formed corporate office of Greenpeace Southern California. In 1978 he became the Vice-President of the Southern California corporation as well as one of its principle media liaisons and spokespersons. On May 12, 1978 Delaney was arrested with Daniel Ellsberg and twelve others at the Rocky Flats Nuclear Weapons Production Facility in Golden, Colorado. Their arrest for trespassing and civil disobedience resulted in a high-profile trial before Judge Kim Goldberger, and national media coverage of the life-threatening environmental disaster caused by the radioactive waste and plutonium contamination. In the summer of 1978 he was a crewmember on Greenpeace ship M.V. Peacock, the last Greenpeace voyage to confront the largest whaling fleets in the world. Delaney ‘s voice-overs are featured in the documentary ‘Voyage of the Peacock’ produced by Phil Caston and Charles Lloyd. He joined with Joyce Yarrow to co-write the story continuity and narrative script for the film. Delaney became President of Greenpeace Southern California in 1979. On October 14 of that year Greenpeace International was founded which set into motion the creation of Greenpeace USA. In 1980 Dennis Delaney was recruited by David McTaggart (Chairman of Greenpeace International) and several Trustees of the newly formed Greenpeace USA, and soon thereafter was chosen as the first National Administrative Director of Greenpeace USA. He was the United States representative on the Greenpeace Council of the International Organization.
Television and Film
In 2011, Delaney founded Mortalfool Productions. Projects in development include 'Saving Whales', a limited television series created and written by Delaney, and inspired by his experiences as a Greenpeace activist in the late 1970s.
• Hejira (2001) 
• Animus (2003)
• Conscientious Objection (2007)
• Dead Cat Bounce (2015)
- Gray, Tom “Anti-Whaling crew jubilant despite few ‘saves’ while trailing Russ.” Valley News 25,Aug. 1978
- Witt, Robin “Save the whale group strikes at the hunters.” Bakersfield Californian 11, Oct. 1978
- Weyler, Rex “Life on the tracks-Derailing the nuclear express in Rocky Flats.” Greenpeace Chronicles June,1978
- Purl, Mara “Greenpeace and the Art of Saving Whales.” Center Stage Magazine Dec. 1978
- Enriquez, Sam “Greenpeace on the front lines of Ecology.” Easy Reader 6, March 1980
- Weyler, Rex Greenpeace: how a group of ecologists, journalists, and visionaries changed the world. Vancouver, British Columbia: Raincoast Books, 2004
- Hoeft, Bruce. Letter to the Trustees of Greenpeace USA regarding national meeting of April 5th to 12th, 1980.
- Greene, Amanda “ ‘Hejira’ carries you away on intense, funny journey.” Wilmington Morning Star 19, Jan. 2001