Mulaney returns to his Chicago high school with David Letterman as they candidly discuss fatherhood, the life of stand-up comedy and addiction.

David Letterman journeys to Kyiv, Ukraine, for a stirring, personal and in-depth conversation with President Volodymyr Zelenskyy.

Julia Louis-Dreyfus takes Dave fishing and talks growing up with two families, serving Gumby tea on "SNL" and reality overtaking fiction with "Veep."

Dave and Kevin Durant go one-on-one in basketball, shuffleboard and conversation as they cover family, focus, trash-talking, social media and more.

Ryan Reynolds makes pizza for Dave while he discusses his youth in Canada, early days as an actor, life as a father and love of Welsh football.

Cardi B and Dave split a chopped cheese in a Bronx bodega and chat hooky parties, hip-hop, parenting, political science and protesting injustice.

Will Smith recalls his rap origins, the lasting impact of his parents, spiritual explorations, and one very fateful night at Quincy Jones' house.

Dave visits Billie Eilish to discuss inspiration, influences and imposter syndrome — and even manages to work in a little go-karting and Auto-tuning.