
| Tom Cavanagh | ... | Ed Stevens (83 episodes, 2000-2004) |

| Julie Bowen | ... | Carol Vessey (83 episodes, 2000-2004) |
 | Jana Marie Hupp | ... | Nancy Burton (83 episodes, 2000-2004) |

| Josh Randall | ... | Mike Burton (83 episodes, 2000-2004) |
 | Lesley Boone | ... | Molly Hudson (83 episodes, 2000-2004) |

| Michael Ian Black | ... | Phil Stubbs (83 episodes, 2000-2004) |

| Rachel Cronin | ... | Shirley Pifko (83 episodes, 2000-2004) |

| Justin Long | ... | Warren Cheswick (83 episodes, 2000-2004) |

| Michael Genadry | ... | Mark Vanacore (58 episodes, 2001-2004) |

| Mike Starr | ... | Kenny Sandusky (45 episodes, 2000-2002) |

| Daryl Mitchell | ... | Eli Goggins (39 episodes, 2002-2004) |

| Ginnifer Goodwin | ... | Diane Snyder (25 episodes, 2001-2004) |
 | Lauren Thomas | ... | Sarah Burton (19 episodes, 2001-2004) |
 | Morgan Thomas | ... | Sarah Burton (19 episodes, 2001-2004) |

| John Slattery | ... | Dennis Martino (17 episodes, 2001-2002) |
 | Marvin Chatinover | ... | Dr. Walter R. Jerome (16 episodes, 2000-2004) |

| Robin Paul | ... | Jessica Martell (14 episodes, 2000-2002) |
 | Sabrina Lloyd | ... | Frankie Hector (11 episodes, 2003) |

| Greg D'Agostino | ... | Student (10 episodes, 2000-2002) |
 | Max Rosmarin | ... | Gavin Shrader (9 episodes, 2000-2003) |

| Marcy Harriell | ... | Jennifer Young (8 episodes, 2003-2004) |

| Pat Finn | ... | Jim Frost (8 episodes, 2001-2002) |

| Rena Sofer | ... | Bonnie Hane (7 episodes, 2001) |
 | Munson Hicks | ... | Judge Henderson (7 episodes, 2000-2001) |
 | Mike Hodge | ... | Judge / ... (7 episodes, 2000-2001) |

| Jason Horton | ... | High School Student (7 episodes, 2002) |

| Nicki Aycox | ... | Stella Vessey (6 episodes, 2002-2004) |
 | Tessa Ghylin | ... | Donna Tozzi (6 episodes, 2001) |
 | Charles Dumas | ... | Judge LaRue / ... (6 episodes, 2001-2003) |
 | Joe Ponazecki | ... | Judge (6 episodes, 2001) |

| Teresa Yenque | ... | Carmela (6 episodes, 2001-2003) |
 | Gregory Harrison | ... | Nick Stanton (5 episodes, 2000) |

| Thomas F. Wilson | ... | Sean Nowell (5 episodes, 2003) |
 | David Little | ... | Albert Schulz / ... (5 episodes, 2001-2004) |
 | Mickey Kelly | ... | Duncan (5 episodes, 2000-2004) |

| Anthony Ferriso | ... | Partygoer / ... (5 episodes, 2001-2003) |

| Loren Ferriso | ... | Kid at Carnival / ... (5 episodes, 2001-2003) |
 | Wallace Little | ... | Jimmy Ressler / ... (5 episodes, 2003-2004) |

| Dan Lauria | ... | Richard Vessey (4 episodes, 2002-2004) |

| Kelly Ripa | ... | Jennifer Bradley (4 episodes, 2002) |
 | Jim Gaffigan | ... | Toby Gibbons (4 episodes, 2003-2004) |
 | Dan Ziskie | ... | Judge Kuhn (4 episodes, 2002-2003) |

| Noah Bean | ... | Tim Cooper (4 episodes, 2000-2001) |
 | Ray Bokhour | ... | Chuck Harris / ... (4 episodes, 2000-2001) |

| Saundra McClain | ... | Wendy (4 episodes, 2000-2001) |
 | Stephanie Mnookin | ... | Pie Shop Waitress / ... (4 episodes, 2000-2001) |

| David Eigenberg | ... | Jeff Alexander (3 episodes, 2001) |
 | Timothy Busfield | ... | Lloyd Stevens (3 episodes, 2002-2004) |
 | Ron McLarty | ... | Jerry Dobbs (3 episodes, 2002-2003) |

| Lea Thompson | ... | Liz Stevens (3 episodes, 2004) |
 | Joyce Reehling | ... | Ms. Gustechi (3 episodes, 2000-2001) |

| Curtis Armstrong | ... | Mr. Cheswick (3 episodes, 2001-2003) |

| Ben Shenkman | ... | Frank Carr / ... (3 episodes, 2001-2003) |

| Mark Matkevich | ... | Ronald 'Fozcat' Foster (3 episodes, 2001) |
 | Lisa Emery | ... | Rita Vessey (3 episodes, 2002-2004) |
 | Forrest Compton | ... | Mr. Emerson / ... (3 episodes, 2001-2002) |
 | Joe Paparone | ... | Manager / ... (3 episodes, 2000-2002) |
 | Emmanuel Mayer | ... | Sarah Burton (3 episodes, 2000) |
 | Sarah Mayer | ... | Sarah Burton (3 episodes, 2000) |

| Nate Mooney | ... | Russell (3 episodes, 2001-2002) |

| Anthony Del Negro | ... | Basketball Fan (3 episodes, 2001-2002) |

| Natalie Hultman | ... | Extra / ... (3 episodes, 2001) |

| Denise Lute | ... | Judge / ... (3 episodes, 2002-2003) |

| Angela Frye | ... | Smiling Goat Patron / ... (3 episodes, 2003) |
 | Kathleen Lancaster | ... | Danielle / ... (3 episodes, 2003) |
 | Matt Stadelmann | ... | Ryan Nowell (3 episodes, 2003) |
 | Reg Rogers | ... | Ted (2 episodes, 2003) |
 | Shuler Hensley | ... | Bob Arnovitz / ... (2 episodes, 2000-2002) |
 | Ray Aranha | ... | Harry Lockemather / ... (2 episodes, 2001) |
 | Richard Easton | ... | Judge Travis R. Donnelly (2 episodes, 2002-2003) |
 | Jane Summerhays | ... | Natalie Stevens (2 episodes, 2001-2004) |
 | Blair Brown | ... | Mary Burton (2 episodes, 2003-2004) |
 | Marceline Hugot | ... | Mrs. Vanacore (2 episodes, 2002-2003) |

| Ivan Martin | ... | Ivan Fonseca (2 episodes, 2002-2003) |

| Amy Sedaris | ... | Kate McCormick (2 episodes, 2004) |
 | Peter Gerety | ... | Dick Knight (2 episodes, 2000-2001) |

| James Murtaugh | ... | Jack Respaldi / ... (2 episodes, 2000-2001) |

| Howard Spiegel | ... | Willie Harris (2 episodes, 2002-2003) |

| Burt Reynolds | ... | Russ Burton (2 episodes, 2003-2004) |
 | Steve Mellor | | (2 episodes, 2000-2001) |
 | Ken Jennings | | (2 episodes, 2003) |
 | Julia K. Murney | ... | Amanda Williams (2 episodes, 2003) |
 | Roger Serbagi | | (2 episodes, 2001-2003) |

| Kevin Chamberlin | ... | Mr. Bronkowski (2 episodes, 2001-2002) |
 | Stephen Bogardus | ... | Lawyer (2 episodes, 2001) |
 | Philip Bosco | ... | Alan Stevens (2 episodes, 2001-2004) |

| Isiah Whitlock Jr. | ... | Tim Unger (2 episodes, 2001) |
 | Dennis Creaghan | ... | George's Lawyer / ... (2 episodes, 2001) |
 | Adam Wylie | ... | David Mirsky (2 episodes, 2001) |
 | Edmund Lyndeck | ... | Charlie Hudson / ... (2 episodes, 2000) |

| Michael Gaston | ... | Frank Kerwin (2 episodes, 2001-2003) |

| Samm Levine | ... | Kevin Schwartz / ... (2 episodes, 2000) |

| Mark Margolis | ... | Mazula / ... (2 episodes, 2003-2004) |

| Richard Poe | ... | Dalton Locke / ... (2 episodes, 2000-2004) |
 | Harvey Atkin | ... | Customer (2 episodes, 2000-2001) |
 | Dena Atlantic | ... | Vivian Ghanda (2 episodes, 2002-2003) |
 | Suzanne Shepherd | ... | Edna / ... (2 episodes, 2000-2004) |
 | Bill Raymond | ... | George Wilkes (2 episodes, 2000-2003) |
 | Robert Ari | ... | Jack / ... (2 episodes, 2000-2002) |
 | Elizabeth Connors | ... | Ms. Verdon (2 episodes, 2003) |

| Tresa Hughes | ... | Judge (2 episodes, 2001-2002) |
 | Craig Bockhorn | ... | Minister / ... (2 episodes, 2002-2003) |
 | Alan Kalter | ... | Principal Gable / ... (2 episodes, 2001-2002) |
 | Robert Weil | ... | Customer #1 / ... (2 episodes, 2000-2001) |
 | William Duell | ... | Mr. Hinckey (2 episodes, 2001-2002) |
 | Ed Wheeler | ... | Hospital Doctor / ... (2 episodes, 2000-2002) |
 | David McConeghey | ... | Bar Guy / ... (2 episodes, 2000) |
 | Keith Reddin | ... | Mr. Henderson (2 episodes, 2000-2003) |
 | Jack Davidson | ... | Duckman / ... (2 episodes, 2000-2002) |

| Don Sparks | ... | Francis / ... (2 episodes, 2000-2002) |
 | Richard Burnett | ... | Delivery Man (2 episodes, 2000-2001) |
 | Jonah Falcon | ... | Barfly (2 episodes, 2000-2001) |
 | Polli Magaro | ... | Marcel (2 episodes, 2000) |
 | John McGinty | ... | Guy / ... (2 episodes, 2001-2004) |

| Val Emmich | ... | Adam (2 episodes, 2001-2003) |
 | Scott Butler | ... | Jakey (2 episodes, 2001-2002) |

| Adrian Martinez | ... | Guy #1 (2 episodes, 2001-2002) |
 | Don Puglisi | ... | Jacob / ... (2 episodes, 2001-2002) |

| Frank Senger | ... | Customer / ... (2 episodes, 2001-2002) |

| Kathleen M. Darcy | ... | Female French Teacher / ... (2 episodes, 2001) |
 | Kelly DeMartino | ... | Waitress at Smiling Goat (2 episodes, 2001) |
 | Alicia Van Couvering | ... | Jenny Rugale (2 episodes, 2001) |
 | John Patrick McLaughlin | ... | Jerry / ... (2 episodes, 2002-2004) |

| Troy Metcalf | ... | Aaron Conway / ... (2 episodes, 2002-2004) |

| Geoffrey Cantor | ... | Jim Adams / ... (2 episodes, 2002-2003) |
 | Kathrina Miccio | ... | Jo Anne Clemson / ... (2 episodes, 2002-2003) |

| Rachel Black | ... | Female Student / ... (2 episodes, 2002) |
 | Myriam Blanckaert | ... | Beauty Pageant Contestant / ... (2 episodes, 2002) |
 | William J. Hasler | ... | Customer / ... (2 episodes, 2002) |
 | Chad Thomas | ... | Guy #2 / ... (2 episodes, 2002) |
 | James Croft | ... | Bowler / ... (2 episodes, 2003-2004) |

| Kevin Kenny | ... | Stuckeyville Bowler / ... (2 episodes, 2003-2004) |

| Joe Rosario | ... | Cook (2 episodes, 2003-2004) |
 | Dana Brooke | ... | Jenny / ... (2 episodes, 2003) |
 | Helmar Augustus Cooper | ... | Judge / ... (2 episodes, 2003) |

| Ben Rauch | ... | Eugene / ... (2 episodes, 2003) |

| Jack Rovello | ... | 8 year old Mike / ... (2 episodes, 2003) |
 | Angela Antista | ... | Customer / ... (2 episodes, 2004) |
 | Crystal Bock | ... | Mrs. Davies / ... (2 episodes, 2004) |
 | Brett Tabisel | ... | J.T. / ... (2 episodes, 2004) |
|
| David Letterman | .... | executive producer (83 episodes, 2000-2004) |
| Jon Beckerman | .... | executive producer (81 episodes, 2000-2004) |
| Rob Burnett | .... | executive producer (81 episodes, 2000-2004) |
| Merrill H. Karpf | .... | co-executive producer / producer / ... (61 episodes, 2001-2004) |
| Timothy Busfield | .... | co-executive producer / supervising producer (44 episodes, 2001-2003) |
| Michael Stricks | .... | co-producer (39 episodes, 2002-2004) |
| Larry Teng | .... | associate producer / co-producer / ... (39 episodes, 2002-2004) |
| Tom Cavanagh | .... | producer (37 episodes, 2002-2004) |
| Marc Buckland | .... | co-executive producer (22 episodes, 2000-2001) |
| Kevin Murphy | .... | consulting producer (22 episodes, 2001-2002) |
| Tom Spezialy | .... | co-executive producer (22 episodes, 2001-2002) |
| Drake Sather | .... | co-executive producer (22 episodes, 2002-2003) |
| Constance M. Burge | .... | consulting producer (17 episodes, 2003-2004) |
| Andrew Dettmann | .... | producer (17 episodes, 2003-2004) |
| Kerry Lenhart | .... | co-executive producer (17 episodes, 2003-2004) |
| John J. Sakmar | .... | co-executive producer (17 episodes, 2003-2004) |
| Jonathan Groff | .... | consulting producer (15 episodes, 2001-2002) |
| Kathleen McGill | .... | producer (13 episodes, 2000-2001) |
| Andrea Newman | .... | producer (13 episodes, 2000-2001) |
| Loucas George | .... | line producer (9 episodes, 2001) |
| David Richardson | .... | co-executive producer (5 episodes, 2002) |
| Jude Brennan | .... | producer (3 episodes, 2001) |
|
| Dana J. Kuznetzkoff | .... | co-producer (unknown episodes, 2003) |
| Bob Brush | .... | consulting producer (unknown episodes) |
| Tricia E. Colligan | .... | associate producer (unknown episodes) |
| Richard Davis | .... | producer (unknown episodes) |
| William J. Hasler | .... | associate producer (unknown episodes) |
| |
|
| Nate Braeuer | .... | location coordinator (83 episodes, 2000-2004) |
| Alicia Ivery | .... | payroll accountant (82 episodes, 2000-2004) |
| Kevin Deiboldt | .... | writing assistant / writers production assistant (42 episodes, 2002-2004) |
| Timothy J. Parkans | .... | production assistant (39 episodes, 2002-2004) |
| Jennifer Opresnick | .... | script supervisor (36 episodes, 2002-2004) |
| Dana Schoenfeld | .... | script coordinator (22 episodes, 2000-2001) |
| Rebecca Ewing | .... | production assistant (22 episodes, 2002-2003) |
| Eugene Stamos | .... | co-key craft service (9 episodes, 2002) |
| David H. Kramer | .... | adr loop group (6 episodes, 2000-2004) |
| Chiemi Karasawa | .... | script supervisor (6 episodes, 2002) |
| Amanda Goodman | .... | group looping (2 episodes, 2001-2002) |
|
| Masha Tivyan | .... | assistant: Rob Burnett and Jon Beckerman (unknown episodes, 2000) |
| Nicholas R. Bell | .... | production assistant (unknown episodes, 2003) |
| Kevin Etten | .... | story editor (unknown episodes, 2003) |
| Barb Mackintosh | .... | story editor (unknown episodes, 2003) |
| Michele Shuwarger | .... | publicist (unknown episodes, 2003) |
| Dave Watson | .... | production executive (unknown episodes, 2003) |
| David Bausch | .... | production coordinator (unknown episodes) |
| Jack Bavaro | .... | production accountant (unknown episodes) |
| David F. Bianculli | .... | facilities manager (unknown episodes) |
| John Paul Bullock III | .... | set production assistant (unknown episodes) |
| Sarah Burian | .... | production assistant (unknown episodes) |
| Tara Butters | .... | story editor (unknown episodes) |
| Katie Cameron | .... | choreographer (unknown episodes) |
| Anne Carr | .... | assistant to co-executive producers (unknown episodes) |
| Adam Carroll | .... | production assistant (unknown episodes) |
| David Catalano | .... | set production assistant (unknown episodes) |
| Boris Cifuentes | .... | production assistant (unknown episodes) |
| Kathy Ciric | .... | location manager (unknown episodes) |
| Mark Curley | .... | location assistant (unknown episodes) |
| Alison Davis | .... | production secretary (unknown episodes) |
| Valerie Desjardins | .... | daily script (unknown episodes) |
| Chris Dingess | .... | story editor (unknown episodes) |
| Aaron Ehasz | .... | executive story editor (unknown episodes) |
| Michele Fazekas | .... | story editor (unknown episodes) |
| Lorraine Galler Maguire | .... | assistant: Tom Cavanagh (unknown episodes) |
| Dave Ginsberg | .... | production assistant (unknown episodes) |
| Michael Goldstrom | .... | dialect coach (unknown episodes) |
| William J. Hasler | .... | production associate (unknown episodes) |
| Jane Kelly Kosek | .... | assistant production coordinator (unknown episodes) |
| Ronnie Kupferwasser | .... | location scout (unknown episodes) |
| Michelle Macirella | .... | production secretary (unknown episodes) |
| Matthew Mason | .... | production assistant (unknown episodes) |
| Pepper O'Brien | .... | first production accountant (unknown episodes) |
| Sean Oliver | .... | adr loop group (unknown episodes) |
| Anne Marie Palopoli | .... | production assistant (unknown episodes) |
| Andrea Pappas | .... | assistant production coordinator (unknown episodes) |
| Martha Pinson | .... | script supervisor (unknown episodes) |
| Jessica Queller | .... | story editor (unknown episodes) |
| Jennifer Quesenbery | .... | location scout (unknown episodes) |
| Corey Reed | .... | script coordinator (unknown episodes) |
| Brian Reingold | .... | location scout (unknown episodes) |
| Guillaume Renberg | .... | remote head technician (unknown episodes) |
| Sheryl Rhodes | .... | assistant production coordinator (unknown episodes) |
| Lonny Ross | .... | assistant to writers (unknown episodes) |
| Yvonne Sayers | .... | production assistant (unknown episodes) |
| Tom Scutro | .... | assistant location manager (unknown episodes) |
| Joe Sevey | .... | location manager (unknown episodes) |
| Ryan Smith | .... | assistant location manager (unknown episodes) |
| Nellie Stevens | .... | assistant to executive producer (unknown episodes) |
| Drew Tidwell | .... | production coordinator (unknown episodes) |
| Deborah L. Velarde | .... | production executive (unknown episodes) |
| Sheila Waldron | .... | script supervisor (unknown episodes) |
| Dana Warning | .... | assistant to co-executive producers (unknown episodes) |
| Trevor Westerhoff | .... | second assistant production coordinator (unknown episodes) |
| Jonathan Zittrain | .... | legal consultant (unknown episodes) |
| |