All 74 actors in both Malcolm in the Middle and Will & Grace
74 actors have appeared in both Malcolm in the Middle and Will & Grace, across 397 episodes. The most-credited is Kenneth Mars, Otto Mannküsser in Malcolm in the Middle and Uncle Sid in Will & Grace.
| Actor | In Malcolm in the Middle | In Will & Grace | Eps | Eps |
|---|---|---|---|---|
| Kenneth Mars | Otto Mannküsser | Uncle Sid | 25 | 2 |
| John Ducey | Peter Rubin | Jamie | 1 | 5 |
| Landry Allbright | Julie Houlerman | Nancy | 3 | 2 |
| Mary Pat Gleason | Woman | Bridget, Sally | 1 | 4 |
| Jack McGee | Coach | Officer Murphy | 2 | 1 |
| Jennette McCurdy | Daisy, Penelope | Lisa | 2 | 1 |
| Rosanna Arquette | Anita | Julie | 1 | 2 |
| Richard Gross | Dave | Frank | 5 | 2 |
| Andy Richter | Dr. Kennedy | Dale | 1 | 1 |
| George Takei | George Takei | George Takei | 1 | 1 |
| Kate Micucci | Heather | Page | 1 | 1 |
| Kathryn Joosten | Claire | Felicia | 1 | 1 |
| Robert Curtis Brown | Tom | "Will" actor | 1 | 1 |
| Todd Stashwick | Nate | Gabe Robinson | 1 | 1 |
| Alex Boling | Willy | Judge, Stuart | 1 | 2 |
| Amy Farrington | Karen | Phyllis | 2 | 1 |
| John O'Brien | Store Clerk | Man, Salesperson | 1 | 2 |
| Kevin Brief | Brian, Guy | Ralph | 2 | 1 |
| Patricia Place | Dolores, Mrs. Jansen | Myrtle | 2 | 1 |
| Rose Abdoo | Margie | Aunt Rita | 2 | 1 |
| Todd Eckert | Hotel Man | Jurgen Franzblau | 1 | 2 |
| Victor Z. Isaac | Kevin | Jason | 5 | 1 |
| Wells Rosales | Private Martinez | waiter #2 | 3 | 1 |
| Brian Palermo | Steve | Brian Kelly | 1 | 1 |
| Jill Basey | Shirley | Margot | 1 | 2 |
| Markus Flanagan | Frank | Dr. Loranger | 1 | 1 |
| Matt Crabtree | Sam | Stage Manager | 1 | 2 |
| Patricia Belcher | Dr. Lucille Armstrong | Ellie | 1 | 1 |
| Yvette Nicole Brown | Female Security Agent #2 | Ru | 1 | 1 |
| Fiona Hale | Edna Thornby, Elderly Lady | Ruth | 2 | 1 |
| Jeremy Forte | Mel | Angry Man, Heckler | 1 | 2 |
| Bruno Amato | Cop | Randy | 1 | 1 |
| Eva La Dare | Bystander #1 | Dr Welch | 1 | 1 |
| Fred Applegate | Dr. Dave | Dr. Foster | 1 | 1 |
| Hallee Hirsh | Jessica | Olivia Walker | 1 | 1 |
| James Black | Sgt. Rick | Anthony Dukane | 1 | 1 |
| Joe Ochman | Announcer | Chuck | 1 | 1 |
| Karl T. Wright | Mark | Wayne | 1 | 1 |
| Robert Clendenin | Garkech | Bob Dent | 1 | 1 |
| Susan Leslie | Tina | Woman | 1 | 1 |
| Tucker Smallwood | Baffert | Professor Henry Rice | 1 | 1 |
| Wayne Wilderson | Hotel Clerk | Ellis Palmer-Payne | 1 | 1 |
| Ashley Edner | Kelly | Ruby | 1 | 1 |
| Bette Rae | Mrs. Potts | Maid | 1 | 1 |
| David Doty | Priest | Harry | 1 | 1 |
| Don Perry | Old Man | Bertram | 1 | 1 |
| E.J. Callahan | Homeless Man | Janitor | 1 | 1 |
| Eddie Pepitone | Homeless Nick | Walt | 1 | 1 |
| Fred Sanders | Cynthia's Dad | Jerry | 2 | 1 |
| Lyn Alicia Henderson | Audience Member #1 | Nurse | 1 | 1 |
| Marcy Goldman | Employee | Judy | 1 | 1 |
| Martin Morales | Ranch Hand #2 | Employee | 1 | 1 |
| Michael Merton | Joey | Maitre d' | 1 | 1 |
| Mimi Cozzens | Donna | BJ | 1 | 1 |
| Noel Conlon | Executive #2 | Minister | 1 | 1 |
| Peter MacKenzie | Terry | Mean Guy | 1 | 1 |
| Sara Paxton | Angela Pozefsky | Melanie | 1 | 1 |
| Stephen Tobolowsky | Mr. Fisher | Ned Weathers | 1 | 1 |
| Titus Napoleon | Sumo Wrestler | Roger Waka-Lana-Huki | 1 | 1 |
| Charles Emmett | Worker | Luke | 1 | 1 |
| Cyndi Martino | Nurse Kathy | Nurse | 1 | 1 |
| Doug Ballard | Businessman | Robert Lillienfield | 1 | 1 |
| Mary Ostrow | Ms. Plum | Woman | 1 | 1 |
| Mitch Silpa | Bartender | Maitre D' | 1 | 1 |
| Sara Van Horn | Richie's Mom | Woman | 1 | 1 |
| Scott Berman | Water Park Attendant | Dontonio | 1 | 2 |
| Andy Umberger | Minister | Captain | 1 | 1 |
| Heather McPhaul | Doris, Trish | Rhonda | 2 | 1 |
| Kevin Cooney | Dr. Dumont | Justice Of The Peace | 1 | 1 |
| Scott Haven | Groom | Steve | 1 | 1 |
| Andrea Silvers | Girl Contestant | Woman | 1 | 1 |
| Jim Hanna | Seth's Dad | Wayne | 1 | 1 |
| Casey Williams | Officer Kirkland | Jean | 1 | 1 |
| John Colella | Off. Mel | Best Man | 1 | 1 |
← Malcolm in the Middle × Will & Grace
Cast data from TVmaze, licensed CC BY-SA 4.0.