1 June 2015: Panellists: Josh Frydenberg, Assistant Treasurer; Anthony Albanese, Shadow Infrastructure Minister; Jack Charles, Indigenous elder, actor and activist; Miriam Lyons, Co-author of Governomics; and Judith Sloan, Businesswoman, Academic and Columnist.

25 May 2015: Panellist: Joe Hockey, Treasurer.

18 May 2015: Panellists: Norman Doidge, Psychiatrist and Author of The Brain's Way of Healing; Caitlin Doughty, Mortician and Author of Smoke Gets in Your Eyes: And Other Lessons from the Crematorium; Douglas Coupland, Visual Artist and Author of Generation X: Tales for an Accelerated Culture; Mohsin Hamid, Author of The Reluctant Fundamentalist and How to Get Filthy Rich in Rising Asia; and Christina Lamb, Journalist & Author of Farewell Kabul.

11 May 2015: Panellists: Clive Palmer, Leader of the Palmer United Party; Christian Porter, Parliamentary Secretary to the Prime Minister; Nakkiah Lui, Playwright; Jason Clare, Shadow Communications Minister; and Jennifer Hewett, Political journalist.

4 May 2015: Panellists: Peter Singer, Renowned philosopher and ethicist; Greg Hunt, Minister for the Environment; Mark Butler, Shadow Minister for Environment; Amanda Vanstone, Former Liberal Senator; and Adrienne Truscott, Comedian, writer, dancer and circus performer.

27 April 2015: Panellists: Arthur Sinodinos, Liberal Senator; Tanya Plibersek, Deputy Opposition Leader; Tim Fischer, Former Deputy Prime Minister and author; Carolyn Holbrook, Author and academic; and Tom Porteous, Deputy Program Director, Human Rights Watch.

20 April 2015: Panellists: Derryn Hinch, Journalist and media personality; Andrew Robb, Minister for Trade and Investment; Anna Burke, Former Speaker of the House; Dave Hughes, Comedian and Broadcaster; and Jane Burns, CEO of the Young and Well Cooperative Research Center.

13 April 2015: Panellists: Peter Greste, Foreign correspondent for Al Jazeera; Mitch Fifield, Assistant Minister for Social Services; Alannah MacTiernan, Shadow Parliamentary Secretary for Regional Development & Infrastructure; Malarndirri McCarthy, Executive Producer, NITV News; and Su McCluskey, CEO of the Regional Australia Institute.

6 April 2015: Panellists: Nana Mouskouri, Internationally acclaimed singer; Kelly O'Dwyer, Parliamentary Secretary to the Treasurer; and Ed Husic, Labor Member for Chifley; Michael Stutchbury, Editor-in-Chief of The Australian Financial Review; and Van Badham, Playwright and Columnist for The Guardian Australia.

30 March 2015: Panellists: Christopher Pyne, Education Minister; Penny Wong, Opposition Leader in the Senate; Brian Schmidt, Nobel Prize Winning Astrophysicist; Ruby Wax, Comedian and author; and Michael Franti, Musician, filmmaker and humanitarian.