Erika Christensen (Traffic, Swimfan, Parenthood) is an American actress and one of Dax's most beloved TV sisters. Erika sits down with the Armchair Expert to discuss her journey as a child actor, her emphasis on clarity and recall, and the areas in which Scientology has informed her worldview. Erika details her days as a cyclist and Dax talks about his favorite scene on Parenthood, They discuss some of their earliest memories of one another, the importance of B vitamins and how bystanders could easily have mistaken them for lovers. Dax, also, reveals the location of the best grilled cheese on planet earth.