Will is the founding editor-in-chief of Filter, an online magazine that launched in 2018 to cover drug use, drug policy and human rights through a harm reduction lens. He's also the executive director of The Influence Foundation, the New York nonprofit behind Filter. His past work in the drugs and human rights spaces has included founding and/or editing a number of other publications, and consulting for various organizations. Originally from England, he now lives in Vermont.

Dr Roberto A Sussman (PhD University of London) is a full time senior researcher and lecturer at the Institute for Nuclear Sciences of the National University of Mexico. His main research areas are General Relativity and Cosmology, but he has conducted research in other areas of Physics, including peer reviewed publications on e-cigarette aerosols. He is also the founder and Director of Pro-Vapeo Mexico, an association representing Mexican consumers of noncombustible nicotine products and is a member of INNCO. He is actively advocating for an appropriate regulation of Tobacco Harm Reduction products in Mexico. He directs and supervises the effort to spread scientific information on these products, as well as advising consumers on how to counter the governmental misinformation and prejudice about them that is rampant throughout Latin America.

Dr. Oyston graduated in 1980 from the University of Newcastle Upon Tyne, UK, with two degrees: a medical degree and a degree in medical research. He trained as an anesthesiologist from 1983 to 1990, qualifying as a specialist in both the UK and Canada. He has also worked as an anesthesiologist in New Zealand, Rwanda, and Ethiopia. He was appointed Chief of Anesthesiology four times. He was also an Assistant Professor at the University of Toronto, and a peer assessor for the College of Physicians Surgeons of Ontario.

In November 2019, Dr. Oyston retired from clinical practice to work on smoking cessation advocacy and knowledge translation related to safer nicotine products for people who smoke.

He has published editorials on tobacco control topics in the Canadian Journal of Anesthesia and the Canadian Medical Association Journal.

William Stewart is the President and Founder of Povaddo, a firm specializing in public opinion and societal expectations research. He has built a firm that helps clients develop better strategies and stronger communications to address complex issues and challenges facing their businesses. William has over 25 years of research consulting experience that spans political campaigns, public affairs initiatives, and a wide range of corporate matters – from issues management to corporate reputation. Prior to launching Povaddo in 2009, William was the global head of research for FleishmanHillard, one the largest PR firms in the world. He started his research career doing political polling in Washington, DC.

Cother Hajat is a Public Health Physician and Epidemiologist. She is an adjunct Professor, a Fellow of the Royal College of Physicians and of the Faculty of Public Health in the UK. Her work for over two decades has focussed on the prevention of chronic disease and its risk factors through thought leadership, policy development, health system redesign and research in academic, commercial and governmental settings.

Cother’s tobacco related work has included the smoking in public places laws in the UK and the United Arab Emirates, and serving as a member on the advisory board for the Tobacco Transformation Index. She has conducted extensive research on the prevalence and impact of tobacco use, most recently systematic reviews on the health impact of ecigarettes and smokeless tobacco, and a narrative article on methodological issues with tobacco harm reduction research.