Panellists: Brian Cox, Particle Physicist and TV Presenter; Emma Johnston, Marine Ecologist and TV host; David Karoly, Leader of the Earth Systems and Climate Change Hub, CSIRO; Kirsten Banks, Astrophysicist and Science Communicator; and Martin Van Kranendonk, Astrobiologist and Geologist.

Panellists: Adam Briggs, Rapper, writer, and actor; Faustina Agolley, Actor and writer; Mike Cannon-Brookes, Co-Founder and Co-CEO Atlassian; Dr Larry Marshall, Chief Executive, CSIRO; and Jocelyn Brewer, Cyberpsychologist.

Panellists: Jimmy Barnes, Rock Icon and Author; Sisonke Msimang, Author; Nicolle Flint, Liberal MP; Joel Fitzgibbon, Shadow Minister for Agriculture; and Matthew Warren, Energy policy specialist.

Panellists: Tim Wilson, Federal Liberal Member for Goldstein; Mark Dreyfus, Shadow Attorney-General; Marcia Langton, Professor of Indigenous Studies; Paul Kelly, Editor-at-large, The Australian; Rachael Jacobs, People's Panellist.

Panellists: Jim Chalmers, Shadow Minister for Finance; Christopher Pyne, Former Liberal MP; Alice Workman, Political reporter, The Australian; Ming Long, Business leader; and Alan Jones, Radio Broadcaster.

Panellists: Simon Birmingham, Liberal campaign spokesman; Tanya Plibersek, Deputy Opposition Leader; Richard Di Natale, Leader of The Australian Greens; and Helen Haines, Independent for Indi.

Panellist: Bill Shorten, Opposition Leader.

Panellists: Mitch Fifield, Minister for Communications; Chris Bowen, Shadow Treasurer; Lenore Taylor, Editor, The Guardian Australia; Bhakthi Puvanenthiran, Managing Editor of Crikey; Greg Sheridan, Foreign Affairs Editor, The Australian.

Panellists: James McGrath, Liberal Senator; Terri Butler, Labor MP; Larissa Waters, Greens Senator; Malcolm Roberts, Pauline Hanson's One Nation Senate candidate.

Panellist: Josh Frydenberg, Treasurer of Australia and Deputy Leader of the Liberal Party