
| Eric McCormack | ... | Will Truman (187 episodes, 1998-2006) |

| Debra Messing | ... | Grace Adler (187 episodes, 1998-2006) |

| Megan Mullally | ... | Karen Walker (187 episodes, 1998-2006) |

| Sean Hayes | ... | Jack McFarland (187 episodes, 1998-2006) |

| Shelley Morrison | ... | Rosario Salazar (63 episodes, 1999-2006) |

| Harry Connick Jr. | ... | Leo Markus (23 episodes, 2002-2006) |

| Leigh Allyn Baker | ... | Ellen (19 episodes, 1998-2006) |
 | Tom Gallop | ... | Rob (16 episodes, 1998-2006) |
 | Bobby Cannavale | ... | Vince D'Angelo (15 episodes, 2004-2006) |

| Tim Bagley | ... | Larry (14 episodes, 2000-2006) |
 | Gary Grubbs | ... | Harlin Polk (11 episodes, 1998-1999) |

| Michael Angarano | ... | Elliot (11 episodes, 2001-2006) |
 | Leslie Jordan | ... | Beverley Leslie (11 episodes, 2001-2006) |

| Blythe Danner | ... | Marilyn Truman (11 episodes, 2001-2006) |
 | Jerry Levine | ... | Joe (11 episodes, 2000-2006) |

| Debbie Reynolds | ... | Bobbi Adler (10 episodes, 1999-2006) |

| Mathew Botuchis | ... | Dave (8 episodes, 2004-2006) |

| Woody Harrelson | ... | Nathan (7 episodes, 2001) |

| Gregory Hines | ... | Ben Doucette (7 episodes, 1999-2000) |

| Marshall Manesh | ... | Mr. Zamir (7 episodes, 1999-2003) |

| Minnie Driver | ... | Lorraine Finster (6 episodes, 2003-2004) |

| Eileen Brennan | ... | Zandra (6 episodes, 2001-2006) |

| Alec Baldwin | ... | Malcolm (6 episodes, 2005) |

| Laura Kightlinger | ... | Nurse Sheila / ... (6 episodes, 2000-2006) |

| John Cleese | ... | Lyle Finster (6 episodes, 2003-2004) |

| Molly Shannon | ... | Val Bassett (5 episodes, 1999-2004) |

| Dave Foley | ... | Stuart Lamarack (5 episodes, 2004) |

| Jamie Kaler | ... | Gary (5 episodes, 2002-2006) |

| John Ducey | ... | Jamie (5 episodes, 2004-2006) |
 | Charles C. Stevenson Jr. | ... | Smitty (5 episodes, 2002-2006) |

| JoMarie Payton | ... | Mrs. Freeman (5 episodes, 1999-2000) |

| Brian A. Setzer | ... | Benji (5 episodes, 2003-2006) |
 | Kari Lizer | ... | Connie (5 episodes, 2001-2004) |
 | Dan Futterman | ... | Barry (4 episodes, 2003) |

| Sydney Pollack | ... | George Truman (4 episodes, 2000-2006) |
 | Steve Paymer | ... | Steve (4 episodes, 1998-2002) |

| Lesley Ann Warren | ... | Tina (4 episodes, 2001-2006) |

| Taye Diggs | ... | James Hanson (4 episodes, 2006) |
 | Emily Rutherfurd | ... | Joanne (4 episodes, 2002-2005) |
 | Neil Vipond | ... | Julius (4 episodes, 2000-2002) |

| Corey Parker | ... | Josh (4 episodes, 2000) |

| Amy Crofoot | ... | Female Student / ... (4 episodes, 1999-2004) |

| Jon Fleming | ... | Russell (4 episodes, 2002-2005) |

| Patrick Dempsey | ... | Matthew (3 episodes, 2000-2001) |

| Jeff Goldblum | ... | Scott Woolley (3 episodes, 2005) |

| Jennifer Lopez | ... | Herself (3 episodes, 2004) |

| Edward Burns | ... | Nick (3 episodes, 2005) |

| Mark Harelik | ... | Tim (3 episodes, 2004) |

| Rip Torn | ... | Lionel Banks (3 episodes, 2002) |

| Sam Pancake | ... | Jimmy / ... (3 episodes, 2001-2004) |
 | Judith Ivey | ... | Eleanor Markus (3 episodes, 2002) |

| Suzanne Pleshette | ... | Lois Whitley (3 episodes, 2002-2004) |

| Jeremy Forte | ... | Angry Man / ... (3 episodes, 2000-2002) |
 | Ellen Idelson | ... | Usherette / ... (3 episodes, 1998-2001) |

| John Slattery | ... | Sam Truman (2 episodes, 1999) |

| Gene Wilder | ... | Mr. Stein (2 episodes, 2002-2003) |

| Tom Verica | ... | Danny (2 episodes, 1999-2002) |

| Landry Allbright | ... | Nancy (2 episodes, 2001-2002) |

| Sandra Bernhard | ... | Herself (2 episodes, 2001-2002) |

| Parker Posey | ... | Dorleen (2 episodes, 2001) |

| Jamie-Lynn Sigler | ... | Ro (2 episodes, 2004) |
 | Branden Williams | ... | Scott (2 episodes, 2001) |

| Rosanna Arquette | ... | Julie (2 episodes, 2003) |

| Lily Tomlin | ... | Margot (2 episodes, 2005-2006) |

| Steven Weber | ... | Sam Truman (2 episodes, 2005-2006) |

| Eric Stoltz | ... | Tom Cassidy (2 episodes, 2005) |

| John O'Brien | ... | Man / ... (2 episodes, 1999-2004) |

| Alex Boling | ... | Judge / ... (2 episodes, 1999-2003) |

| Jason Stuart | ... | Stuart (2 episodes, 2000-2002) |
 | Mary Beth McDonough | ... | Mom (2 episodes, 2002) |

| Tim Curry | ... | Marion Finster (2 episodes, 2004) |

| Lee Garlington | ... | Annette (2 episodes, 2004) |
 | Earl Schuman | ... | Driver / ... (2 episodes, 1999-2003) |

| Mary Pat Gleason | ... | Sally (2 episodes, 2000) |
 | Dennis Satterfield | ... | Cook / ... (2 episodes, 2001-2005) |

| Brooke Baumer | ... | Alex / ... (2 episodes, 2006) |
 | Todd Eckert | ... | Jurgen Franzblau (2 episodes, 1998) |

| Brent Sexton | ... | Guard / ... (2 episodes, 2001-2002) |
 | Katie Couric | ... | Herself (2 episodes, 2002) |
 | Robert Costanzo | ... | Paul (2 episodes, 2004) |
 | Louis Giovannetti | ... | Cop / ... (2 episodes, 2000-2002) |
 | Andrew Rosenbach | ... | Barney's Employee / ... (2 episodes, 2001-2002) |

| Steve Hasley | ... | Carlo / ... (2 episodes, 2003-2006) |
 | Kathleen Marie Archer | ... | Delivery Woman / ... (2 episodes, 2000-2002) |
 | Mitch Kaplan | ... | Mitchie (2 episodes, 2001-2002) |

| Rachel Quaintance | ... | Roz (2 episodes, 2002-2005) |
 | Barry Karas | ... | Himself / ... (2 episodes, 2003-2004) |

| Josh Keaton | ... | Sal / ... (2 episodes, 2004) |

| Matthew McCray | ... | Jasper (2 episodes, 2002-2003) |

| Matt Crabtree | ... | Stage Manager (2 episodes, 2005-2006) |

| Matthew J. Williamson | ... | Gene / ... (2 episodes, 2005) |
 | Marissa Matrone | ... | Aunt Angie (2 episodes, 2004) |

| Reed Alexander | ... | Jordan Truman / ... (2 episodes, 2005-2006) |
 | Bridget Flanery | ... | Viv Cassidy (2 episodes, 2005) |

| Jennie Fahn | ... | Mom #1 / ... (2 episodes, 2000-2006) |

| Joseph Will | ... | Bill (2 episodes, 2002) |
 | Ralph Litt | ... | Judge Holcomb / ... (2 episodes, 2002-2004) |

| Benjamin Sprunger | ... | Matt (2 episodes, 2004) |

| Kyla Dang | ... | Casey Truman (2 episodes, 2005-2006) |

| Peggy Lane | ... | Female Cabbie / ... (2 episodes, 2002-2003) |
 | Gina Morelli | ... | Grandma (2 episodes, 2004) |
 | Lorry Goldman | ... | Rabbi (2 episodes, 2002) |

| Kevin Bacon | ... | Himself (2 episodes, 2002-2006) |

| Cher | ... | Herself (2 episodes, 2000-2002) |

| Gigi Goff | ... | Little Girl / ... (2 episodes, 2006) |
 | Nick Nervies | ... | Boy (2 episodes, 2006) |
 | Richard Assad | ... | Male Cabbie / ... (2 episodes, 2000-2002) |
 | Doug Devine | ... | Ottoman Buyer / ... (2 episodes, 2000-2001) |
 | Jeri Slaughter | ... | Dancer (2 episodes, 2004) |

| Skyler Caleb | ... | Yatzick (2 episodes, 2006) |
|
| Bruce Alden | .... | producer / associate producer / ... (187 episodes, 1998-2006) |
| David Kohan | .... | executive producer (187 episodes, 1998-2006) |
| Max Mutchnick | .... | executive producer (187 episodes, 1998-2006) |
| Tim Kaiser | .... | co-executive producer / producer / ... (186 episodes, 1998-2006) |
| James Burrows | .... | executive producer (174 episodes, 1999-2006) |
| Peter Chakos | .... | producer / associate producer (164 episodes, 1999-2006) |
| Alex Herschlag | .... | executive producer / co-executive producer / ... (154 episodes, 1999-2005) |
| Jhoni Marchinko | .... | executive producer / co-executive producer / ... (152 episodes, 1998-2005) |
| Steve Sandoval | .... | associate producer / producer (142 episodes, 2000-2006) |
| Jon Kinnally | .... | supervising producer / co-executive producer / ... (141 episodes, 2000-2006) |
| Tracy Poust | .... | supervising producer / co-executive producer / ... (141 episodes, 2000-2006) |
| Adam Barr | .... | co-executive producer / consulting producer / ... (139 episodes, 1998-2004) |
| Jeff Greenstein | .... | executive producer / co-executive producer / ... (132 episodes, 1998-2004) |
| Laura Kightlinger | .... | consulting producer / co-producer (121 episodes, 2000-2006) |
| Bill Wrubel | .... | co-executive producer / producer / ... (102 episodes, 2001-2005) |
| Kari Lizer | .... | co-executive producer / consulting producer (95 episodes, 2000-2004) |
| Gary Janetti | .... | co-executive producer / supervising producer / ... (95 episodes, 2002-2006) |
| Gail Lerner | .... | producer / supervising producer / ... (95 episodes, 2002-2006) |
| Sally Bradford | .... | producer / supervising producer (47 episodes, 2004-2006) |
| Greg Malins | .... | co-executive producer / executive producer (47 episodes, 2004-2006) |
| Donald Petersen | .... | associate producer (47 episodes, 2004-2006) |
| Kirk J. Rudell | .... | co-executive producer (47 episodes, 2004-2006) |
| Kate Angelo | .... | producer (24 episodes, 2004-2005) |
| Abraham Higginbotham | .... | producer (23 episodes, 2005-2006) |
| Janis Hirsch | .... | co-executive producer (23 episodes, 2005-2006) |
| Jamie Rhonheimer | .... | producer (23 episodes, 2005-2006) |
| Tom Leopold | .... | consulting producer (21 episodes, 1998-1999) |
| John Riggi | .... | co-executive producer (18 episodes, 2005-2006) |
| David Flebotte | .... | executive producer (14 episodes, 2004-2005) |
| Cynthia Mort | .... | consulting producer (12 episodes, 2001-2002) |
| David Walpert | .... | consulting producer (11 episodes, 2005) |
| Richard Rosenstock | .... | consulting producer (10 episodes, 2000-2001) |
| Dava Savel | .... | consulting producer (8 episodes, 1998-1999) |
| William Lucas Walker | .... | supervising producer (8 episodes, 1998-1999) |
| Michael Patrick King | .... | consulting producer (5 episodes, 1998-1999) |
| Eve Ahlert | .... | co-producer (5 episodes, 1999) |
| Dennis Drake | .... | co-producer (5 episodes, 1999) |
| Tom Park | .... | line producer / live producer (2 episodes, 2005-2006) |
| |
|
| Sean Tuell | .... | best boy grip (186 episodes, 1998-2006) |
| John Greene | .... | gaffer (185 episodes, 1998-2006) |
| Travers Hill Jr. | .... | camera operator (183 episodes, 1998-2006) |
| Glenn K. Shimada | .... | camera operator (183 episodes, 1998-2006) |
| Joe Blaisdell | .... | camera operator (169 episodes, 1999-2006) |
| Alfie Cunningham | .... | key grip (165 episodes, 1999-2006) |
| Gary Howard Baum | .... | camera operator (162 episodes, 1998-2005) |
| Paul Jacobsen | .... | lighting console programmer / lighting console operator (117 episodes, 1998-2004) |
| David Tolsky | .... | assistant camera (109 episodes, 1998-2003) |
| Joe Garcia | .... | best boy electric (92 episodes, 1998-2002) |
| Philip N. Berardi | .... | best boy electric (53 episodes, 2002-2004) |
| Billy Webb | .... | best boy electric (42 episodes, 2004-2006) |
| Dic Alexander | .... | key grip (22 episodes, 1998-1999) |
| Lance Billitzer | .... | camera operator (21 episodes, 2005-2006) |
| Carlos Arguello | .... | camera operator (15 episodes, 1998-1999) |
| John Green | .... | gaffer (2 episodes, 1998) |
| Jeff Richardson | .... | best boy grip (2 episodes, 1998) |
| David Chameides | .... | camera operator (2 episodes, 2005-2006) |
| Kim Killingsworth | .... | lighting consultant (2 episodes, 2005-2006) |
| Rob Palmer | .... | camera operator (2 episodes, 2005-2006) |
|
| Ron Ervin | .... | grip (unknown episodes, 2000-2006) |
| Michael Carmine | .... | director of photography: second unit (unknown episodes) |
| Justin M. Lubin | .... | still photographer (unknown episodes) |
| Michael R. Marquette | .... | assistant camera (unknown episodes) |
| Matthew Santo | .... | assistant camera: New York (unknown episodes) |
| David Yellin | .... | lamp operator (unknown episodes) |
| |
|
| Russ Sherman | .... | technical coordinator / technical director (179 episodes, 1998-2006) |
| Peggy Lane | .... | stand-in (168 episodes, 1998-2006) |
| Sandy Flowers | .... | craft service (150 episodes, 2000-2006) |
| Julie Fleischer | .... | script supervisor (131 episodes, 2000-2006) |
| Sally Bradford | .... | script coordinator / executive story editor / ... (122 episodes, 1998-2004) |
| Jennifer Goldsmith | .... | assistant accountant (108 episodes, 1998-2003) |
| Zack Slovinsky | .... | assistant to executive producer / assistant to executive producers: / ... (104 episodes, 2001-2006) |
| Steve Gabriel | .... | script coordinator / assistant to writer (97 episodes, 2002-2006) |
| David Malkoff | .... | production assistant (95 episodes, 2000-2004) |
| Larry Cogan | .... | production accountant (95 episodes, 2002-2006) |
| Steve Sandoval | .... | production coordinator (94 episodes, 1998-2005) |
| Eugene Lew | .... | production accountant (92 episodes, 1998-2002) |
| Steve Clark | .... | production assistant (90 episodes, 1998-2002) |
| Jim Wheelan | .... | craft service assistant (90 episodes, 2002-2006) |
| Heather Hicks | .... | executive assistant: Kohan & Mutchnick / assistant to executive producers: / ... (87 episodes, 2002-2006) |
| Jason Ervin | .... | production assistant / production secretary (86 episodes, 2001-2005) |
| Julienne La Fleur | .... | assistant accountant / assistant production accountant (77 episodes, 2003-2006) |
| Danielle Evenson | .... | assistant to co-executive producers / assistant to co-executive producer / ... (72 episodes, 2001-2004) |
| Amanda Kowalsky | .... | assistant to co-executive producers / assistant to co-executive producer (72 episodes, 2002-2005) |
| Becky Opp | .... | assistant production coordinator / production secretary / ... (71 episodes, 2003-2006) |
| Ronna Spencer | .... | production coordinator / assistant production coordinator (70 episodes, 1999-2002) |
| Kim Abram | .... | production assistant (69 episodes, 2003-2006) |
| Danny Schrader | .... | production assistant (69 episodes, 2003-2006) |
| Susan Garon | .... | assistant to co-executive producer / assistant to co-executive producers / ... (66 episodes, 1999-2002) |
| Melissa Strauss | .... | executive assistant: Kohan & Mutchnick / assistant to executive producer / ... (65 episodes, 2003-2006) |
| Daniella Quinones | .... | production assistant / executive assistant: Kohan & Mutchnick / ... (59 episodes, 2000-2003) |
| Janet Kagen | .... | script supervisor (55 episodes, 1998-2001) |
| Kate Barnow | .... | assistant to executive producers / assistant to executive producers: / ... (48 episodes, 2002-2004) |
| Shannon Dixon | .... | assistant production coordinator (48 episodes, 2002-2004) |
| Chris Steimel | .... | production assistant (48 episodes, 2002-2004) |
| Matt Bellanger | .... | assistant production coordinator / production assistant (47 episodes, 2000-2002) |
| Michael Lacey | .... | production secretary / assistant production coordinator (47 episodes, 2004-2006) |
| Katie Palmer | .... | story editor / executive story editor / ... (45 episodes, 1998-2001) |
| Jessica Gordon | .... | production assistant / assistant to executive producer (45 episodes, 2004-2006) |
| Josh Silberman | .... | assistant to co-executive producers / assistant to executive producer (45 episodes, 2004-2006) |
| Jill Freeman | .... | assistant to executive producer (44 episodes, 1998-2000) |
| Michelle Bochner | .... | script coordinator / assistant to writer (42 episodes, 1998-2000) |
| Chris Conner | .... | assistant to executive producer / assistant to executive producers / ... (42 episodes, 2004-2006) |
| Mike Trail | .... | production assistant (41 episodes, 1999-2001) |
| Barry Langer | .... | assistant to writers (36 episodes, 2004-2005) |
| Donald Petersen | .... | production assistant (32 episodes, 1998-2001) |
| Jon Kinnally | .... | story editor / executive story editor (32 episodes, 1999-2000) |
| Tracy Poust | .... | story editor / executive story editor (32 episodes, 1999-2000) |
| Cam Sanders | .... | assistant to writers (31 episodes, 2002-2004) |
| Eric L. Hurd | .... | production assistant (29 episodes, 1998-2000) |
| Stacey K. Pantazis | .... | executive assistant: Kohan & Mutchnick (29 episodes, 2001-2002) |
| Patrick Vettraino | .... | assistant to co-executive producer (27 episodes, 2000-2001) |
| Christopher Fife | .... | assistant to writer / script coordinator (25 episodes, 2001-2002) |
| Amy Askins | .... | production assistant (24 episodes, 2002-2003) |
| Laura Cochrane | .... | production assistant / production secretary (24 episodes, 2002-2003) |
| Tracey Diana | .... | assistant to co-executive producers / assistant to co-executive producer (24 episodes, 2002-2003) |
| Ashley Barnett | .... | production assistant (24 episodes, 2003-2004) |
| Jessica Sultan | .... | assistant to executive producers: / assistant to executive producers (24 episodes, 2003-2004) |
| Michael Foulke | .... | production assistant (24 episodes, 2004-2005) |
| Jeff Greenstein | .... | executive consultant (24 episodes, 2004-2005) |
| Corey L. Marsh | .... | production assistant (24 episodes, 2004-2005) |
| Sonja Warfield | .... | story editor (24 episodes, 2004-2005) |
| Amy Hubbs | .... | assistant to writers / script coordinator (23 episodes, 2005-2006) |
| Liz Prives | .... | production secretary (23 episodes, 2005-2006) |
| Ben Acker | .... | production assistant (22 episodes, 1999-2000) |
| Lisa Borgnes | .... | assistant to writer (22 episodes, 2000-2001) |
| Maggie McGarry | .... | executive assistant: Kohan & Mutchnick (22 episodes, 2000-2001) |
| Marsy Robinson | .... | assistant to executive producers: / assistant to executive producer (22 episodes, 2004-2005) |
| Tracy Gaydos | .... | assistant production coordinator / production secretary (21 episodes, 1998-1999) |
| Michael S. Peters | .... | assistant to writer / assistant to writers (21 episodes, 1998-1999) |
| Leah Cramer | .... | production assistant (21 episodes, 2005-2006) |
| Ryan Goldstein | .... | production assistant (21 episodes, 2005-2006) |
| Tim Hayward | .... | assistant to executive producer (21 episodes, 2005-2006) |
| Steve Schifini | .... | production assistant (21 episodes, 2005-2006) |
| Marc Firek | .... | assistant to co-executive producer / assistant to co-executive producers / ... (20 episodes, 1999-2000) |
| Alissa R. Chulack | .... | production assistant (19 episodes, 2000-2001) |
| Kate Peris | .... | production assistant (16 episodes, 1999-2000) |
| Genessa Davis | .... | assistant to accountants (12 episodes, 2003) |
| Courtney Boches | .... | network publicity intern (12 episodes, 2005-2006) |
| Carrie Friedman | .... | assistant to executive producer (11 episodes, 2000-2001) |
| Kathryn Walker | .... | assistant to executive producers: (11 episodes, 2004) |
| Eve Weston | .... | assistant to writers (9 episodes, 2006) |
| Colin Ebeling | .... | assistant to executive producer / assistant to writer (6 episodes, 2004) |
| Tyler M. Hall | .... | assistant to co-executive producer (5 episodes, 2001-2002) |
| Ryan James Corbin | .... | production assistant (5 episodes, 2001) |
| Alison Powell | .... | assistant to writers (5 episodes, 2002) |
| Bill Narducci | .... | production assistant (3 episodes, 1999) |
| Brad Miller | .... | assistant to writer (2 episodes, 1998) |
| Blake Morrow | .... | production assistant (2 episodes, 1999) |
| John B. Field | .... | technical director (2 episodes, 2005-2006) |
| Tad Scripter | .... | technical supervisor (2 episodes, 2005-2006) |
|
| Laura Kightlinger | .... | writing consultant (unknown episodes, 1999) |
| Jamie French | .... | publicist (unknown episodes, 2003) |
| Jamie Fiench | .... | publicist (unknown episodes, 2005) |
| Vanessa Rojas | .... | production assistant (unknown episodes, 2005) |
| John Arbuckle | .... | marine technician (unknown episodes) |
| Kate Burrow | .... | assistant to executive producer (unknown episodes) |
| Peter Hansen | .... | caterer: pastry chef (unknown episodes) |
| Marion Koh | .... | assistant to executive producer (unknown episodes) |
| Roger Lundblade | .... | audience warm-up (unknown episodes) |
| |