
Wilson A. Head was an American/Canadian sociologist and community planner known for his work in race relations, human rights and peace in the United States, Canada and other parts of the world.

Avon Hudson is a South Australian RAAF ex-serviceman, nuclear weapons testing whistle-blower and co-author of the 2005 book Beyond Belief which he wrote with academic and historian, Roger Cross. He has appeared in several documentary films about nuclear weapons testing in Australia.

Patricia Joyce Lindop FRCP was British professor of radiation biology at the University of London and the organiser of at least 100 "Pugwash" meetings at which scientists met to discuss their campaign for nuclear disarmament.
David Noonan is an Australian environmentalist and member of the anti-nuclear movement in Australia. Noonan is a former anti-nuclear campaigner for the Australian Conservation Foundation, and has been a prominent spokesperson during campaigns against the expansion of uranium mining in Australia and against the establishment of nuclear waste storage facilities. He has a science degree and a Masters in Environmental Studies.

Susanna Ounei was a Kanak independence activist and feminist from New Caledonia who spent her last years in New Zealand. She supported various other causes including a nuclear free Pacific and Maori independence.

Orlie Pell was an American pacifist, philosopher, and activist.

Professor Tilman Alfred Ruff is an Australian public health and infectious diseases physician who has focused his efforts on immunization and "the global health imperative to eradicate nuclear weapons."
David Sweeney is a prominent Australian anti-nuclear campaigner. He works for the Australian Conservation Foundation and acts an opinion writer and spokesperson on topics including uranium mining, nuclear waste, nuclear energy, nuclear weapons proliferation, nuclear accidents and related indigenous rights issues. Sweeney has made appearances in or contributed to several documentary films which include discussion of nuclear issues. He has been described by Matthews Stevens of the Australian Financial Review as "one of the nation's hardest working anti-nuke campaigners."