The first season of the comedic travel documentary show premiered in 2017 to great acclaim and this week, season 4 — which was filmed in Australia before the COVID-19 pandemic hit — was released on Netflix. Jack’s mom (and Michael’s wife) Hilary Whitehall made an appearance in season 3 of the show and her presence was obviously a hit because she’s back for season 4, specifically in the Sydney episode. And just from the 45-minute episode, it’s clear where Jack gets his comedic chops from. So let’s get to know more about the woman behind the famous father and son duo.