All 140 actors in both Malcolm in the Middle and The Practice
140 actors have appeared in both Malcolm in the Middle and The Practice, across 318 episodes. The most-credited is Daniel Von Bargen, Commandant Edwin Spangler in Malcolm in the Middle and Detective Smiley in The Practice.
| Actor | In Malcolm in the Middle | In The Practice | Eps | Eps |
|---|---|---|---|---|
| Daniel Von Bargen | Commandant Edwin Spangler | Detective Smiley | 15 | 1 |
| Michael Monks | Grossman | George Vogelman | 1 | 11 |
| Steve Rankin | Sgt. Hendrix | Stephen Jamison | 3 | 3 |
| Robert Clendenin | Garkech | David Rogers | 1 | 4 |
| Betty White | Sylvia | Catherine Piper | 1 | 3 |
| Dan Martin | Malik | Officer Tedesco | 7 | 1 |
| Steven Gilborn | Dr. Harrison | A.D.A. Gavin Bullock | 1 | 6 |
| Jack McGee | Coach | Detective Schitt | 2 | 1 |
| Ellis E. Williams | Patient | Kevin Beel | 1 | 4 |
| Art LaFleur | Fred | William Bolling | 1 | 3 |
| Cheryl Carter | Jogger | Reporter Sarah Ehret, News Anchor, Reporter #5 | 1 | 5 |
| Kathleen York | Ellie Johnson | Sharon | 1 | 1 |
| Richard Gross | Dave | Wesley Pollack | 5 | 1 |
| Rosanna Arquette | Anita | Brenda Miller | 1 | 1 |
| McNally Sagal | Woman | U.S. Attorney Melnick | 1 | 2 |
| Patricia Belcher | Dr. Lucille Armstrong | Candace Levy, Foreperson | 1 | 2 |
| Patricia Place | Dolores, Mrs. Jansen | Mary Burlington | 2 | 1 |
| Phil Abrams | Neighbor | Gary Strangis, Randy Peete | 1 | 2 |
| Thomas Kopache | Vic Feldspar | Dr. Harold Manning, Judge Morris Seymour, Mr. Schramm | 1 | 3 |
| Caroline Aaron | Nurse Peterson | Delores Keplar | 1 | 1 |
| Cristine Rose | Mrs. Demarco | Bernice White | 1 | 2 |
| Donald Sage MacKay | Man | Howard McGowan | 1 | 2 |
| James Geralden | Speaker #2 | Detective Bernard Nelsonm, Detective John Carringhan | 1 | 2 |
| Jeremy Roberts | Georgie | Alan Neel | 1 | 3 |
| Julia Campbell | Donna | A.D.A. Karen Fields | 1 | 1 |
| Mark L. Taylor | Phil | Dr. Reichal, Judge Andrew MacDonald, Wiggins' Psychiatrist | 1 | 3 |
| Markus Flanagan | Frank | D.A. Earl Schott | 1 | 1 |
| Michael Gaston | Mel | Roland Hubert | 1 | 1 |
| Michael Kagan | Cop | Judge Keller, Peter Martini | 1 | 2 |
| Michael Rothhaar | Dr. Herz | Judge Laurence Abrahams, Leonard Welish | 1 | 2 |
| Nancy Lenehan | Christie, Helen | Nurse MacKenzie | 2 | 1 |
| Reggie Jordan | Man, Police Officer | Bailiff | 2 | 1 |
| Robert Curtis Brown | Tom | Attorney John Wicker, Scott Simpson | 1 | 2 |
| Clyde Kusatsu | Ice Cream Man | Judge Stephen Chin | 1 | 2 |
| David Doty | Priest | Foreman, Judge Robert Bournes | 1 | 2 |
| Michael Chieffo | Dennis | Chris Varley | 2 | 1 |
| Sarah Godshaw | J.J. | Annie Mullin | 1 | 2 |
| James Henriksen | Male Security Guard, Officer Moon, Waiter | Joseph | 4 | 1 |
| Jim Jansen | Mr. Jeffers, Pastor Ray | Attorney Richard Hart, Attorney Ryan Hall, Stephen Gould | 2 | 3 |
| Kirsten Nelson | Jeanie | Judy Burke | 1 | 1 |
| Kurt Fuller | Mr. Young | Attorney David Lawrence | 1 | 1 |
| Lorna Raver | Big Kathy | Pearson's Assistant | 1 | 1 |
| Mark Moses | Richard | Henry Winslow | 1 | 1 |
| Marshall Allman | Dylan | Todd Beck | 1 | 1 |
| Michael Dempsey | Teddy | Officer Stroud | 1 | 1 |
| Teresa Velarde | Theresa | Jury Foreperson | 1 | 1 |
| Tim DeKay | Matt | Jerry Green | 1 | 1 |
| Wendy Worthington | Cheryl | Jury Foreperson #1 | 1 | 1 |
| Weston Blakesley | Cabbie, Eric's Father #2 | Washington | 2 | 1 |
| Ajgie Kirkland | Major Hughes | Guard | 1 | 1 |
| Amanda Fuller | April | Julie Lennon | 1 | 1 |
| Brian Mulligan | Peter Noyes | Mitch Penner | 1 | 1 |
| Dakota Fanning | Emily | Alessa Engel | 1 | 1 |
| Fred Sanders | Cynthia's Dad | Roland Hoffstra | 2 | 1 |
| George Wyner | Foreman Fred | Rabbi Stewart Lewis | 1 | 1 |
| Lindsey Ginter | Captain Renquist | John Schramm | 1 | 2 |
| Peter MacKenzie | Terry | D.A. Brunner | 1 | 1 |
| Peter Siragusa | Krijak | Dom | 1 | 1 |
| Sandra Purpuro | Miss Zieger | Mrs. Hampton | 1 | 1 |
| Richard Topol | Mr. Grieb | Coroner Dr. Josh Inwood | 1 | 2 |
| Dylan Kasch | Crony #1 | Sammy Simpson | 1 | 1 |
| Garret Davis | Guy #2 | Cassell / F.B.I. Agent Donnigan | 1 | 1 |
| Jack Shearer | Neighbor #1 | Mr. Johnson | 1 | 1 |
| James Hong | Mr. Li | Min Wong | 1 | 1 |
| Joan McMurtrey | Mrs. Inkster | Cindy Randall | 1 | 1 |
| John O'Brien | Store Clerk | Foreman | 1 | 1 |
| Kerry Carney | Candystriper | Paula Morris | 1 | 1 |
| Loanne Bishop | Woman | Christina Wayne | 1 | 1 |
| Mark Chaet | Doctor | Notary Public | 1 | 1 |
| Maurice Godin | Car Dealer | John Aikman | 1 | 1 |
| Michael Patrick McGill | Paramedic Dave | Officer Gailey | 1 | 1 |
| Paul Schackman | Jackson | Dr. Lanning | 1 | 1 |
| Rick Scarry | Preacher | Mr. Connell | 1 | 1 |
| Scott Klace | Ned | Stephen Hatfield | 1 | 1 |
| Skip O'Brien | Worker | Correction Officer Saunders | 1 | 1 |
| Steve Kramer | Doctor | Atty. Talbot | 1 | 1 |
| Stewart Skelton | Agent | Prosecutor #1 | 1 | 1 |
| Traber Burns | Minister | Prospective Male Juror #2 | 1 | 1 |
| Edmund L. Shaff | General | Judge John Kirkland | 1 | 2 |
| Marc Vann | Mr. Pinter | Terry Glazer | 1 | 2 |
| Andy Umberger | Minister | A.D.A. Virgil Johnson | 1 | 1 |
| Diane Robin | Heidi's Mom | Nurse Laurie | 1 | 1 |
| Donna Pieroni | Heavyset Woman | Milli Trevalli | 1 | 1 |
| Holmes Osborne | Mr. Young | Jeffrey Hyde | 1 | 1 |
| Jayne Taini | Farmer Woman | Nancy Horan | 1 | 1 |
| Joe J. Garcia | Carnie | Joel Bullock | 1 | 1 |
| Kevin Cooney | Dr. Dumont | Dr. Fairby | 1 | 1 |
| Marco Gould | Informed Cadet | Steven Olson | 1 | 2 |
| Matt Malloy | Mr. Sheridan | Mr. Robinson | 1 | 1 |
| Mimi Cozzens | Donna | Ellen Rapson | 1 | 1 |
| Ned Schmidtke | Manfred Schmidt | Dr. Donald Seidman | 1 | 1 |
| Nick Toth | Newsman | Judge Wayne Morris | 1 | 1 |
| Noel Conlon | Executive #2 | Judge Donald Freeman | 1 | 1 |
| Steve Tom | Mr. Jacobson | Leonard Stewart | 1 | 1 |
| Tucker Smallwood | Baffert | Dr. Henry Matthews, Dr. Mick Benson | 1 | 2 |
| Randy Thompson | Cop, Officer | William Finnerty | 2 | 1 |
| Aloma Wright | Nurse | Corrections Officer | 1 | 1 |
| Chris Gann | Jack | Cop | 1 | 1 |
| David C. Fisher | Auto Sales Associate | Lawyer | 1 | 1 |
| Doug Ballard | Businessman | Jack Carroll | 1 | 1 |
| Kathleen M. Darcy | Wife | Clerk No. 2 | 1 | 1 |
| Kevin Dunigan | Male Guest | Security Guard | 1 | 1 |
| Pat Battistini | Truant Officer | Prospective Male Juror #1 | 1 | 1 |
| Rick Zieff | Heidi's Dad | Attorney George Collins | 1 | 1 |
| Rob Elk | Devon | Tony | 1 | 1 |
| Sara Van Horn | Richie's Mom | Aunt Laurie | 1 | 1 |
| Stephen Tobolowsky | Mr. Fisher | Clyde Burrows | 1 | 1 |
| Vic Polizos | Father McCluskey | Detective Wes Pegler | 1 | 1 |
| Nick Mize | Barry | Detective Whiteson | 2 | 1 |
| Andy Mackenzie | Thief | Ritchie Macklin | 1 | 1 |
| Bonita Friedericy | Susan | Sandra Poole | 1 | 1 |
| Darlene Kardon | Gladys | Mildred the Psychologist | 1 | 1 |
| Karl T. Wright | Mark | Andrew Burton | 1 | 1 |
| Miriam Flynn | Cooking Teacher | Mary Stokes | 1 | 1 |
| Paul Hayes | Jury Foreman | Walter Cates | 1 | 1 |
| Shashawnee Hall | Policeman | Officer Horton | 1 | 1 |
| Teddy Lane, Jr. | Zoo Worker Mel | Malzone Juror | 1 | 1 |
| Billy Mayo | Referee | Sgt. George Gilman | 1 | 1 |
| Dan Desmond | Judge | Judge Max Clammage | 1 | 1 |
| Larry Weissman | Waiter | Clerk | 1 | 1 |
| Laura Henry | Jeffrey's Mother | Foreperson | 1 | 1 |
| Richard Penn | Doctor | Judge Wald | 1 | 1 |
| Sharon Johnston | Theresa | Katie | 1 | 1 |
| Benita Krista Nall | Monique | Candice Watson | 1 | 1 |
| Clement E. Blake | Garbage Man | Homeless Man | 1 | 1 |
| Eric K. George | Private Cooper | Bernard Reynolds | 1 | 1 |
| John Valdetero | Pete | Police Officer | 1 | 1 |
| Paul Tigue | Cake Vendor | Foreman | 1 | 1 |
| Rick Hall | Vince | Officer Trimble | 1 | 1 |
| Terry Woodberry | Bill | FBI Agent Smoller | 1 | 1 |
| Jack Impellizzeri | Deputy #2 | Checkpoint Officer No. 2 | 1 | 1 |
| Joe O'Connor | Jones | Minister | 1 | 1 |
| Kim Delgado | Newsman | Bailiff | 1 | 1 |
| Eric Fleeks | Ref | Court Officer | 1 | 1 |
| Jennie Ventriss | Elderly Woman | Ria Manning | 1 | 1 |
| Ken Daly | Meter Reader | Detective Belle | 1 | 1 |
| Albert Owens | Off. Jones | Atty. Jack Roberts | 1 | 1 |
| Asante Jones | Lighting Guy | Officer Smith | 1 | 1 |
| Barry Sigismondi | Officer O'Shannon | Detective Stephen Mills | 1 | 1 |
| John Maynard | Father | Foreman | 1 | 1 |
← Malcolm in the Middle × The Practice
Cast data from TVmaze, licensed CC BY-SA 4.0.