Season 1 Host Zach Galifianakis conducts celebrity interviews sitting with his guests between two potted ferns. Details Casts Posters Season Lists Episode Lists Title Season 1 Genres Comedy Talk Air Date 2008-01-04 Episode Runtime 00 Hours 04 Minutes Season Number 1 Episode Count On Season 1 21 Production Companies Comedy Bang! Bang! Productions Zach Galifianakis... Self - Host... Original Size (500x753) Season 1 21 Episode(s) 2008-01-04 Episode 1 2008-01-04 Michael Cera... Episode 2 2008-04-17 Jimmy Kimmel... Episode 3 2008-12-12 Jon Hamm... Episode 4 2009-05-06 Natalie Portman... Episode 5 2009-05-26 Bradley Cooper... Episode 6 2009-09-08 Charlize Theron... Episode 7 2009-11-16 Conan O'Brien & Andy Rich... Episode 8 2010-03-16 Ben Stiller... Episode 9 2010-07-26 Steve Carell... Episode 10 2010-08-24 Sean Penn... Episode 11 2010-10-11 Bruce Willis... Episode 12 2011-02-07 Jennifer Aniston & Tila T... Episode 13 2011-05-23 Will Ferrell... Episode 14 2013-02-11 Oscar Buzz Edition (1)... Episode 15 2013-02-12 Oscar Buzz Edition (2)... Episode 16 2013-05-08 James Franco... Episode 17 2013-09-26 Justin Bieber... Episode 18 2014-03-11 President Barack Obama... Episode 19 2014-10-22 Brad Pitt... Episode 20 2016-09-22 Hillary Clinton... Episode 21 2018-06-14 Jerry Seinfeld & Cardi B...