Will Ferrell, Tom Dreesen

S09 E01 • Monday, Aug 20, 2001 • Aug 20

Dave announces that instead of "whatever," from now on he will be saying "wherever"; during a segment called "While We Were Out," the male staff members commemorate a minor design change on the stage by sitting in Dave's chair buck naked; Will Ferrell makes a threating message in song to Barbra Streisand.

Bob Newhart, Maxwell

S09 E02 • Tuesday, Aug 21, 2001 • Aug 21

National Hollerin' Champions, Julia Stiles, Habib Koite & Bamada

S09 E03 • Wednesday, Aug 22, 2001 • Aug 22

Brooke Shields, John McEnroe, Joe Henry

S09 E04 • Thursday, Aug 23, 2001 • Aug 23

Eric Kraff, Goran Ivanisevic

S09 E05 • Friday, Aug 24, 2001 • Aug 24

Connie Chung

S09 E06 • Monday, Aug 27, 2001 • Aug 27

Dave points out that Tony Mendez is mentioned in this week's "Talk of the Town" column in The New Yorker. Later, Jude Brennan makes her last appearance as the bitchy "Mrs. Letterman."

Jason Biggs, Daniel Tosh, Etta James

S09 E07 • Tuesday, Aug 28, 2001 • Aug 28

Charles Grodin, Michael Franti & Spearhead

S09 E08 • Wednesday, Aug 29, 2001 • Aug 29

Sarah Jessica Parker, John Witherspoon

S09 E09 • Thursday, Aug 30, 2001 • Aug 30

Mayor Guiliani interrupts Dave's monologue; Sarah Jessica Parker promotes "Sex & the City."

Helen Fielding, Al Lubel

S09 E10 • Friday, Aug 31, 2001 • Aug 31

Tom Arnold, Brandi Chastain, Ralph Stanley & The Whites

S09 E11 • Monday, Sep 3, 2001 • Sep 3

David Schwimmer, Bjork

S09 E12 • Tuesday, Sep 4, 2001 • Sep 4

Carson Daly, US Marine Corps

S09 E13 • Wednesday, Sep 5, 2001 • Sep 5

Tim Robbins, Amy Sedaris, Jimmy Eat World

S09 E14 • Thursday, Sep 6, 2001 • Sep 6

Eugene Levy, Rich Hall

S09 E15 • Friday, Sep 7, 2001 • Sep 7

Dan Rather, Regis Philbin

S09 E16 • Monday, Sep 17, 2001 • Sep 17

In the first show following the terrorist destruction of the World Trade Center, Dave welcomes CBS anchorman Dan Rather and Regis Philbin.

Bryant Gumbel, Denis Leary, Tori Amos

S09 E17 • Tuesday, Sep 18, 2001 • Sep 18

Matthew Broderick, John Miller, Odetta & The Boys Choir of Harlem

S09 E18 • Wednesday, Sep 19, 2001 • Sep 19

Walter Cronkite, Will Ferrell, Jewel

S09 E19 • Thursday, Sep 20, 2001 • Sep 20

Merideth Viera, Stephen Ambrose, Sheryl Crow, Emmylou Harris, and Gillian Welch

S09 E20 • Friday, Sep 21, 2001 • Sep 21

Rudolph Giuliani, Katie Harmon

S09 E21 • Monday, Sep 24, 2001 • Sep 24

Dave welcomes national hero Rudy Guiliani to the show for the first time since the WTC disaster.

Marcia Gay Harden, Doris Kearns Goodwin, Pete Yorn

S09 E22 • Tuesday, Sep 25, 2001 • Sep 25

Thomas Von Essen, Ben Stiller, Tenacious D

S09 E23 • Wednesday, Sep 26, 2001 • Sep 26

Hillary Clinton, Cast of '42nd Street'

S09 E24 • Thursday, Sep 27, 2001 • Sep 27

Jason Alexander, Don Zimmer, Wyclef Jean

S09 E25 • Friday, Sep 28, 2001 • Sep 28

Elton John, Steve Zahn

S09 E26 • Monday, Oct 1, 2001 • Oct 1

Kate Beckinsale, Chris Kattan, Sarah Harmer

S09 E27 • Tuesday, Oct 2, 2001 • Oct 2

John Cusack, Grant Paulsen, Joe Strummer

S09 E28 • Wednesday, Oct 3, 2001 • Oct 3

During "What's the Deal With Old Guys and Enormous Glasses?" Dave wears a 70's-era pair of specs; John Cusack promotes Serendipity.

Owen Wilson, Lisa Ling, Ryan Adams

S09 E29 • Thursday, Oct 4, 2001 • Oct 4

Paul composes a song about people that look like Burt Reynolds; Owen Wilson plugs Zoolander.

Joshua Jackson, Tiki Barber, Emo Phillips

S09 E30 • Friday, Oct 5, 2001 • Oct 5

Alan gives dating tips; Joshua Jackson promotes the upcoming season premiere of "Dawson's Creek;" Emo Philips does a stand-up routine on Dave's show for the first time since 1989.

Farrah Fawcett, Tina Fey, Garbage

S09 E31 • Monday, Oct 8, 2001 • Oct 8

Tom Cavanagh, Steve Hartman, Leona Naess

S09 E32 • Tuesday, Oct 9, 2001 • Oct 9

Nathan Lane, Cokie Roberts

S09 E33 • Wednesday, Oct 10, 2001 • Oct 10

Bruce Willis, Cody Arens, Alicia Keys

S09 E34 • Thursday, Oct 11, 2001 • Oct 11

Out of the blue, Dave compliments the New York State Police, but Paul smells a rat. Dave claims he wasn't pulled over again. Meanwhile, Bruce Willis plays "drums" with his head and 7-year-old child actor Cody Arens plugs Riding in Cars with Boys.

Rose McGowen, Sarah Vowell, Jim Gaffigan

S09 E35 • Friday, Oct 12, 2001 • Oct 12

Steve Kroft, Bruce McCall, John Mellencamp

S09 E36 • Monday, Oct 15, 2001 • Oct 15

Jack Hannah, Justin Long, Daniel Rodriguez

S09 E37 • Tuesday, Oct 16, 2001 • Oct 16

Ethan Hawke, Judith Miller, Quincy Jones

S09 E38 • Wednesday, Oct 17, 2001 • Oct 17

John McCain, Brittany Murphy, Macy Gray

S09 E39 • Thursday, Oct 18, 2001 • Oct 18

Kevin Kline, Richard Holbrooke, Caroline Rhea

S09 E40 • Friday, Oct 19, 2001 • Oct 19

David Hyde Pierce, U2

S09 E41 • Monday, Oct 29, 2001 • Oct 29

David Spade, Marv Albert, Laurie Anderson

S09 E42 • Tuesday, Oct 30, 2001 • Oct 30

Kevin Spacey, Amy Sedaris

S09 E43 • Wednesday, Oct 31, 2001 • Oct 31

Tom Brokaw, Gene Catron

S09 E44 • Thursday, Nov 1, 2001 • Nov 1

John Travolta, Harland Williams

S09 E45 • Friday, Nov 2, 2001 • Nov 2

Jack Black, Tony Bennett

S09 E46 • Monday, Nov 5, 2001 • Nov 5

Billy Crystal, Brittany Spears

S09 E47 • Tuesday, Nov 6, 2001 • Nov 6

Marge Helgenberger, Gil de Ferran, Lyle Lovett

S09 E48 • Wednesday, Nov 7, 2001 • Nov 7

Stupid Pet Tricks, Vince Vaughn, Faith Evans

S09 E49 • Thursday, Nov 8, 2001 • Nov 8

Richard Dreyfus, Brett Butler

S09 E50 • Friday, Nov 9, 2001 • Nov 9