Andy Richter
Episode: 1x01 | Airdate: Sep 16, 2006
Season 1
Mary Lynn Rajskub
Episode: 1x02 | Airdate: Sep 23, 2006
Michael McDonald
Episode: 1x03 | Airdate: Sep 30, 2006
Thomas Lennon
Episode: 1x04 | Airdate: Oct 7, 2006
Tom Green
Episode: 1x05 | Airdate: Oct 14, 2006
Jerry Seinfeld
Episode: 1x06 | Airdate: Oct 21, 2006
Jason Alexander
Episode: 1x07 | Airdate: Nov 4, 2006
Joey Greco
Episode: 1x08 | Airdate: Nov 11, 2006
Fred Willard
Episode: 1x09 | Airdate: Nov 18, 2006
Jeff Garlin
Episode: 1x10 | Airdate: Nov 25, 2006
Cheryl Hines
Episode: 1x11 | Airdate: Dec 9, 2006
Julia Louis-Dreyfus
Episode: 1x12 | Airdate: Dec 16, 2006
Carl Reiner
Episode: 1x13 | Airdate: Jan 6, 2007
Tim Meadows
Episode: 1x14 | Airdate: Jan 20, 2007
Tom Arnold
Episode: 1x15 | Airdate: Feb 3, 2007
John C. McGinley
Episode: 1x16 | Airdate: Feb 10, 2007
Melinda Clarke
Episode: 1x17 | Airdate: Feb 17, 2007
Bobby Lee
Episode: 1x18 | Airdate: Feb 24, 2007
Seth MacFarlane
Episode: 1x19 | Airdate: Mar 24, 2007
Alex Borstein
Episode: 1x20 | Airdate: Apr 7, 2007
Michael Rapaport
Episode: 1x21 | Airdate: Apr 28, 2007
Dave Foley
Episode: 1x22 | Airdate: May 19, 2007
Season 2
Ryan Seacrest
Episode: 2x01 | Airdate: Sep 15, 2007
Brian Baumgartner
Episode: 2x02 | Airdate: Sep 22, 2007
Eddie Kaye Thomas
Episode: 2x03 | Airdate: Sep 29, 2007
Louis C.K.
Episode: 2x04 | Airdate: Oct 6, 2007
Patrick Warburton, Jerry Seinfeld (as host)
Episode: 2x05 | Airdate: Nov 3, 2007
Carl Reiner
Episode: 2x06 | Airdate: Nov 10, 2007
Andy Kindler
Episode: 2x07 | Airdate: Nov 17, 2007
Nick Bakay
Episode: 2x08 | Airdate: Nov 24, 2007
Thomas Dekker and Mark L. Walberg
Episode: 2x09 | Airdate: Jan 12, 2008
Jordin Sparks
Episode: 2x10 | Airdate: Jan 19, 2008
Bryan Cranston
Episode: 2x11 | Airdate: Jan 26, 2008
Jimmy Smith and Doug Anderson
Episode: 2x12 | Airdate: Feb 2, 2008
John Langley
Episode: 2x13 | Airdate: Feb 9, 2008
Tim Heidecker and Eric Wareheim
Episode: 2x14 | Airdate: Feb 16, 2008
David Koechner
Episode: 2x15 | Airdate: Feb 23, 2008
Tom Green
Episode: 2x16 | Airdate: Mar 8, 2008
George Wallace
Episode: 2x17 | Airdate: Mar 15, 2008
Nick Swardson
Episode: 2x18 | Airdate: Mar 29, 2008
Adam Carolla
Episode: 2x19 | Airdate: Apr 5, 2008
James Kyson Lee
Episode: 2x20 | Airdate: Apr 19, 2008
Luenell
Episode: 2x21 | Airdate: Apr 26, 2008
Maz Jobrani
Episode: 2x22 | Airdate: May 17, 2008
Season 3
Kara DioGuardi
Episode: 3x01 | Airdate: Sep 13, 2008
Rex Lee
Episode: 3x02 | Airdate: Sep 20, 2008
Kevin Farley
Episode: 3x03 | Airdate: Sep 27, 2008
Bo Burnham
Episode: 3x04 | Airdate: Oct 4, 2008
Glenn Howerton
Episode: 3x05 | Airdate: Oct 11, 2008
Craig Robinson
Episode: 3x06 | Airdate: Nov 1, 2008
Vanilla Ice
Episode: 3x07 | Airdate: Nov 8, 2008
David Archuleta
Episode: 3x08 | Airdate: Nov 15, 2008
Olivia Munn, Hanson
Episode: 3x09 | Airdate: Nov 22, 2008
J.B. Smoove
Episode: 3x10 | Airdate: Dec 13, 2008
Lisa Kudrow, Todd Barry, The Submarines
Episode: 3x11 | Airdate: Jan 17, 2009 (60 min)
Mary Lynn Rajskub, Trace Adkins
Episode: 3x12 | Airdate: Jan 24, 2009 (60 min)
Drew Pinsky, Ben Lyons, G. Love
Episode: 3x13 | Airdate: Jan 31, 2009 (60 min)
Dana Carvey, Perez Hilton, Olivia Munn, Penn Fraser Jillette
Episode: 3x14 | Airdate: Feb 7, 2009 (60 min)
Seth MacFarlane, Andy Richter, Jack Osbourne
Episode: 3x15 | Airdate: Feb 14, 2009 (60 min)
Jennifer Morrison, Tom Papa, Shirley Manson
Episode: 3x16 | Airdate: Feb 21, 2009 (60 min)
Cheech and Chong
Episode: 3x17 | Airdate: Mar 7, 2009 (60 min)
Carl Reiner, Bo Burnham
Episode: 3x18 | Airdate: Mar 14, 2009 (60 min)
Crista Flanagan
Episode: 3x19 | Airdate: Mar 21, 2009 (60 min)
Niecy Nash
Episode: 3x20 | Airdate: Mar 28, 2009 (60 min)
Tony Rock
Episode: 3x21 | Airdate: Apr 25, 2009 (60 min)
Tim Heidecker and Eric Wareheim
Episode: 3x22 | Airdate: May 16, 2009 (60 min)