Season
- Season 16 2008-09-02
- Season 15 2007-09-04
- Season 14 2006-09-05
- Season 13 2005-09-06
- Season 12 2004-08-31
- Season 11 2003-09-03
- Season 10 2002-09-03
- Season 9 2001-09-04
- Season 8 2000-09-05
- Season 7 1999-09-07
- Season 6 1998-09-15
- Season 5 1997-09-09
- Season 4 1996-09-17
- Season 3 1995-09-11
- Season 2 1994-09-12
- Season 1 1993-09-13
- Season 0 1998-09-16
Episode
- Episode 1: Rob Schneider, Maria Bello, Nick DiPaolo
- Episode 2: Ben Stiller, Famke Janssen, Junior Brown
- Episode 3: Caroline Rhea, Kris Kristofferson, Jud Hale
- Episode 4: Jason Priestley, George Hamilton, Los Super Seven
- Episode 5: Will Ferrell, Ken Olin, Bonnie Raitt
- Episode 6: Martin Sheen, Alicia Witt, Local H
- Episode 7: Denis Leary, Judge Judy, Jimeoin
- Episode 8: Janeane Garofalo, John Waters, PJ O'Rourke
- Episode 9: Fran Drescher, DL Hughley
- Episode 10: Billy Bragg & Wilco
- Episode 11: Kelsey Grammer, Toni Collette, Chastity Bono
- Episode 12: Gina Gershon, Dylan McDermot, Squirrel Nut Zippers
- Episode 13: Yasmine Bleeth, Kevin Sorbo, Duncan Sheik
- Episode 14: Peter Gallagher, Charlton Heston, Rich Hall
- Episode 15: Jeff Goldblum, Starr Jones, Barenaked Ladies
- Episode 16: Jon Stewart, Louis C.K., Annabella Sciorrra
- Episode 17: Stephen Baldwin, Jeri Ruan, Mark Leyner
- Episode 18: Sandra Bullock, Scott Thompson, Rasputina
- Episode 19: Lucy Lawless, Tate Donovan, Kenny Rogerson
- Episode 20: Isabella Rossellini, David Arquette, Cake
- Episode 21: Jeff Daniels, Christina Applegate, Robert Schimmel
- Episode 22: Sam Donaldson, Bob Odenkirk, Mötley Crüe
- Episode 23: Ray Romano, Reese Witherspoon, Trey Parker
- Episode 24: Martin Short, Jimmy Blaylock, Cheap Trick
- Episode 25: Kiefer Sutherland, Debbie Matenopoulos, Everlast
- Episode 26: Adam Sandler, Jonathan Taylor Thomas
- Episode 27: David Spade, Fred Savage, Canibus
- Episode 28: Chris Kattan, Kate Mulgrew, Gomez
- Episode 29: Luke Perry, Ice Cube, Timothy 'Speed' Levitch
- Episode 30: Tom Everett Scott, Missy Giovi
- Episode 31: Roma Downey, Al Green
- Episode 32: Alyssa Milano, R.E.M.
- Episode 33: Rob Schneider, Jerry Stiller, Dr. Drew Pinsky & Adam Corolla
- Episode 34: Jennifer Love Hewitt, Marc Maron
- Episode 35: Charlieze Theron, Jerry Springer, Everclear
- Episode 36: Dave Foley, Garth Brooks
- Episode 37: Jon Lovitz, Larry King, Stuttering John
- Episode 38: Scott Thompson, Mike Royce
- Episode 39: Wayne Gretsky, Dame Judi Dench, Elvis Costello & Burt Bacharach
- Episode 40: Senator Bob Dole, Annie Potts, Guster
- Episode 41: Michael Moore, Rich Hall, Michael Jackson
- Episode 42: Tom Hanks, Roger Daltrey
- Episode 43: Alec Baldwin, Jordana Brewster
- Episode 44: Robin Williams, Rebecca Stamos
- Episode 45: Salma Hayek, Roberto Benigni
- Episode 46: Bill Paxton, Elijah Wood, Lewis Black
- Episode 47: Jeff Goldblum, Carol Leifer, The Flys
- Episode 48: Tom Brokaw, Caroline Rhea, Tony Bennett
- Episode 49: Colin Quinn, Barney Frank
- Episode 50: George Wendt, Camryn Manheim, Limp Bizkit
- Episode 51: Charles Grodin, Ana Gasteyer, Ozomatli
- Episode 52: James Woods, Wayne Newton, Brian Kiley
- Episode 53: Chazz Palminteri, Anthony Clark, Irma Thomas
- Episode 54: Al Roker, George Brett, Jake Evans
- Episode 55: Will Ferrell, Melina Kanakaredes, Todd Barry
- Episode 56: Lisa Kudrow, Maury Povich, Vic Chestnutt
- Episode 57: Alan Cumming, G.E. Smith & Taylor Barton
- Episode 58: Jesse Jackson, Arj Barker, Freddie Prinze
- Episode 59: Mira Sorvino, Greg Germann, The Goo Goo Dolls
- Episode 60: James Van Der Beek, Kevin Pollack, Roshumba
- Episode 61: Dave Chappelle, Jewel
- Episode 62: Tony Curtis, Mathew Lillard
- Episode 63: David Alan-Grier, Wanda Sykes-Hall
- Episode 64: Carmen Electra, Jams Cobur, Fear Of Pop
- Episode 65: Steven Wright, Kellie Martin, The Marvelous 3
- Episode 66: Eric McCormack, Jason Schwartzman
- Episode 67: Gwyneth Paltrow, Tim Russert
- Episode 68: Pamela Anderson, Michael T. Weiss, Ricky Scaggs
- Episode 69: Stephen King, Gloria Reuben
- Episode 70: John Tesh, Jeri Ryan, Clyde Peeling
- Episode 71: Rosie O'Donnell, Daniel Stern
- Episode 72: Bill Maher, Fabio, Orgy
- Episode 73: James Ellroy, Rebecca Gayhart, Dave Chappelle
- Episode 74: Rosie Perez, John Pizzarelli
- Episode 75: Andy Garcia, Jimmy Fallon, The Afghan Whigs
- Episode 76: Myles Berkowtiz, Andie MacDowell
- Episode 77: Kevin Nealon, Ed Byrne
- Episode 78: Fred Savage, Garry Marshall, Shannon Hall
- Episode 79: Martin Short, Sarah O'Hare, The Black Crowe
- Episode 80: Bill Murray, Jon Stewart, Natalie Merchant
- Episode 81: Al Franken, Jane Krakowski, Louis CK
- Episode 82: Sir Ian McKellen, Juliette Lewis, Bare Junior
- Episode 83: Mark Wahlberg, Wendie Malick
- Episode 84: Penn & Teller, Treat Williams, Crackpipe Wisconsin
- Episode 85: John Lithgow, Darrell Hammond, Robert Schimmel
- Episode 86: Regis Philbin, Thomas Gibson, The Chieftains
- Episode 87: Barbara Walters, Jenna Elfman, Jerry Bivona
- Episode 88: Claire Danes, Chris Eigeman, Steve Earle and the Del McCoury Band
- Episode 89: Dave Foley, Jennifer Grey, Dru Hill
- Episode 90: Caroline Rhea, Mills Lane, Paul F. Tompkins
- Episode 91: Steve Austin, Louie Anderson, Ben Savage
- Episode 92: Norm MacDonald, Roshumba, Placebo
- Episode 93: Tom Brokaw, Colin Quinn, The Neville Bros.
- Episode 94: Thane Maynard, Dweezil & Ahmet Zappa
- Episode 95: Jackie Chan, Diane Lane, Marc Maron
- Episode 96: Kevin Pollak, Josh Charles, Collective Soul
- Episode 97: Lyle Lovett, David Brenner, Amy Sedaris
- Episode 98: David Arquette, Jerry O'Connell, Susan Susan Tedeschi
- Episode 99: Will Ferrell, Jennifer Esposito, Mike Lupica
- Episode 100: Jay Mohr, Jerry Springer, Citizen King
- Episode 101: Martha Stewart, David Blaine, Todd Barry
- Episode 102: Liv Tyler, Tim Meadows, Juvenile
- Episode 103: Evander Holyfield, Marc Maron, Latin Playboys
- Episode 104: Chris O'Donnell, Megan Mullally, David Feldman
- Episode 105: Matt Lauer, Seth Green, Sugar Ray
- Episode 106: George Stephanopoulos, Ana Gasteyer, Paula Cale
- Episode 107: Michael J. Fox, Kevin James, Billy Burr
- Episode 108: Matthew Broderick, Michael Moore, Godsmack
- Episode 109: Al Roker, Louis CK, Madness
- Episode 110: Aidan Quinn, Christa Miller, Greg Giraldo
- Episode 111: Julianne Moore, Reese Witherspoon, Scott Dikkers
- Episode 112: Harvey Keitel, Michael Rapaport, Patty Griffin
- Episode 113: Paul Reiser, Chris Kattan, Old 97's
- Episode 114: Janeane Garofalo, Ben Stiller, George Segal
- Episode 115: Sarah Michelle Geller, Camryn Manheim
- Episode 116: Rob Lowe, Michelle Williams, Hootie & Blowfish
- Episode 117: Clyde Peeling, Timothy Dalton, The Atomic Fireballs
- Episode 118: Scott Thompson, Mary McCormack, Brian Greene
- Episode 119: Tom Selleck, William Shatner, Lewis Black
- Episode 120: Helen Hunt, Keri Russell
- Episode 121: Gina Gershon, Craig Bierko, Greg Fitzsimmon
- Episode 122: Steven Wright, Lit
- Episode 123: Susan Lucci, Bill Bellamy
- Episode 124: Damon Wayans, Gabriella Reece
- Episode 125: Sarah Jessica Parker, George Thorgood
- Episode 126: Geraldo Rivera, Rachel Griffiths
- Episode 127: Scott Wolf, Allison Eastwood, Michael Moschen
- Episode 128: Dave Foley, Joy Behar
- Episode 129: Brian Dennehy, James McDaniel, Brian Regan
- Episode 130: Noah Wyle, Jonathan Katz, Mike Ness
- Episode 131: Nathan Lane, Wayne Knight, Joe Distler
- Episode 132: Mike Myers, Julian Lennon
- Episode 133: Patricia Arquette, Allen Covert, Seal
- Episode 134: Bob Costas, Frederique, Robert Cray
- Episode 135: Adam Sandler, Vince McMahon
- Episode 136: Rob Schneider, Richard Belzer, Luscious Jackson
- Episode 137: John Leguizamo, Tom Green, Margaret Smith
- Episode 138: Dan Rather, Trey Parke, Tom Petty & The Heartbreakers
- Episode 139: Al Roker, Alyson Hannigan, Marc Maron
- Episode 140: Chris Rock, Jennifer Esposito, Cubanismo
- Episode 141: Harry Hamlin, Ronnie Dawson
- Episode 142: Carmen Electra, Eugene Levy, Kelly Willis
- Episode 143: Mayor Rudolph Giuliani, Dwayne Perkins, Jeff Greenfield
- Episode 144: Gillian Welch & David Ralings with Emmylou Harris
- Episode 145: Kevin Nealon, Adrien Brody, Joey Ramone
- Episode 146: Tori Spelling, Tony Randall, Moby
- Episode 147: Ed Byrne, Jon Lovitz, Amy Adams
- Episode 148: Janeane Garofalo, Public Enemy
- Episode 149: Harry Connick Jr, Jeffrey Tambor
- Episode 150: Pierce Brosnan, Jake Johannsen, Al Goldstein
- Episode 151: Ana Gasteyer, Malcolm McDowell, Wanda Sykes
- Episode 152: Matthew Broderick, Kristin Davis, Train
- Episode 153: Scott Thompson, Rudy Wax, Jeff Beck
- Episode 154: Darrell Hammond, Michael T. Williams, Gene Pompa
- Episode 155: Claire Danes, Richard Kind, Toddy Barry
- Episode 156: Jarod Miller, Joely Fisher, Buckcherry
- Episode 157: LL Cool J, Jamie Kennedy, Los Lobos
- Episode 158: Jason Priestley, Roshumba, John Sebastian & The J-Band
- Episode 159: Hugh Grant, Esther Canadas, Louis CK
- Episode 160: Stone Cold Steve Austin, Michael Boatman, Diana Krall
Late Night with Conan O'Brien Season 6 Matthew Broderick, Michael Moore, Godsmack
Stepping into the late-late slot vacated by David Letterman, Conan O'Brien stars in a show that far outdoes its competition in sheer strangeness. Along with the celebrity interviews and musical numbers typical of late-night talk shows, this program make frequent use of odd walk-on characters and frequent "visits" from celebrity guests.
