Dax Randall Shepard is an American actor, comedian, filmmaker and podcaster. Since 2018, he has hosted Armchair Expert, a podcast in which he interviews celebrities, journalists, and academics about their lives.

Armchair Expert is a weekly podcast hosted by American actors Dax Shepard and Monica Padman. Each podcast features Shepard and Padman interviewing celebrities, journalists, and academics about "the messiness of being human". The podcast premiered February 14, 2018, with Shepard's wife, actress Kristen Bell, as the first guest. It appeared on Vulture's list of 2018's best comedy podcasts and was reviewed by The Irish Times. Shepard and Padman have also taken their podcast on the road, recording episodes in front of live audiences.