Recurring Guest Characters Barack Obama 1 guest appearances Rep. John Lewis 1 guest appearances George Clooney 1 guest appearances Malala Yousafzai 1 guest appearances Rick Rubin 1 guest appearances Jay-Z 1 guest appearances Buddy Guy 1 guest appearances Tina Fey 1 guest appearances Howard Stern 1 guest appearances Jerry Seinfeld 1 guest appearances Kanye West 1 guest appearances Ellen DeGeneres 1 guest appearances Tiffany Haddish 1 guest appearances Lewis Hamilton 1 guest appearances Melinda Gates 1 guest appearances Zach Galifianakis 1 guest appearances Lizzo 1 guest appearances Dave Chappelle 1 guest appearances Robert Downey, Jr. 1 guest appearances Kim Kardashian West 1 guest appearances ⇤ « 1 2 » ⇥