'Cigar Czar' Richard Carleton Hacker is an author, and one of the world's foremost experts on cigars, wine and spirits.

Stuart King is the founder and owner of two Cincinnati Bars - Sundry & Vice and Comfort Station.

Garth Foster is the Brand Development Manager for Belvedere Vodka Australia & New Zealand.

Alex Gondzioulis is a bartender at Sydnay cocktail bar Bulletin Place, and the 2019 Australian Bartender of the Year.

Hiryasu Kayama is a bartender come modern-day alchemist who owns Tokyo's Bar Benfiddich.

Agung Prabowo is co-owner of the #1 Bar in Asia, The Old Man Hong Kong.

Ludo Ducrocq is the Global Director of Education & Advocacy at The Glenmorangie Company.