All 87 actors in both Star Trek: Voyager and The Practice
87 actors have appeared in both Star Trek: Voyager and The Practice, across 339 episodes. The most-credited is Richard McGonagle, Commander Pete Harkins in Star Trek: Voyager and Judge Patrick Wilcox in The Practice.
| Actor | In Star Trek: Voyager | In The Practice | Eps | Eps |
|---|---|---|---|---|
| Richard McGonagle | Commander Pete Harkins | Judge Patrick Wilcox | 2 | 16 |
| Bruce Davison | Jareth | Scott Wallace | 1 | 9 |
| Gregory Itzin | Dysek | Attorney Mark Grundel, Attorney Walter Pyne, D.A. Michael Stanfield | 1 | 5 |
| Joseph Campanella | Arbitrator | Judge Joseph Camp | 1 | 5 |
| Dakin Matthews | Admiral Patterson | Judge William Aldrich, Judge Courtney Lander | 1 | 4 |
| John de Lancie | Q | Dr. Walsh, Walter Bannish | 3 | 2 |
| Robert Clendenin | Vidiian Surgeon | David Rogers | 1 | 4 |
| Jack Shearer | Admiral Hayes, Admiral Strickler | Mr. Johnson | 3 | 1 |
| Nicolas Surovy | Pe'Nar Makull | Richard Baldwin, Dr. Henry Richards | 1 | 3 |
| Spencer Garrett | Weiss | A.D.A. Carter | 2 | 2 |
| Ed Begley Jr. | Henry Starling | Dr. Emanuel Foster | 2 | 1 |
| Lindsey Ginter | Saavdra | John Schramm | 1 | 2 |
| Virginia Madsen | Kellin | Marsha Ellison | 1 | 2 |
| Willie Garson | Riga | D.A. Frank Shea | 1 | 2 |
| Ivar Brogger | Barus, Orum | Kevin Stadler, John Blair | 2 | 3 |
| Tony Amendola | Chorus #3 | Dr. Bernard Gorman, Dr. Alvin Traub, Dr. Emmanuel Willis | 1 | 4 |
| Bruce McGill | Captain Braxton | Judge Charles Fleming | 1 | 1 |
| Daniel Dae Kim | Gotana Retz | Officer Pratt | 1 | 1 |
| James Noah | Rislan | Appellate Judge Patterson | 1 | 1 |
| John Rubinstein | John Evansville | Judge Joseph Papp | 1 | 3 |
| Len Cariou | Admiral Janeway | Defense Attorney Stephan Weiland | 1 | 1 |
| Lisa Kaminir | Lillias | Atty. Hanson | 1 | 1 |
| Mark Moses | Naroq | Henry Winslow | 1 | 1 |
| Mickey Cottrell | Dumah | Dr. Michael Helms | 1 | 1 |
| Robert Pine | Liria | John Monahan | 1 | 1 |
| Wren T. Brown | Kohlar | Attorney Scott Layden | 1 | 1 |
| Robert Picardo | Dr. Lewis Zimmerman, Equinox EMH | Dr. Edmunds | 4 | 1 |
| Stan Ivar | Mark | Judge Harvey Gleason, Mark Jacobs | 2 | 3 |
| Armin Shimerman | Quark | Judge Garth Moskin | 1 | 2 |
| Jeff Yagher | Iden | Michael Sawyer | 2 | 1 |
| Jerome Butler | Korok | Hinks' Attorney | 2 | 1 |
| Kaitlin Hopkins | Dala | Karen Mills | 1 | 2 |
| Richard Riehle | Seamus | Mr. Holt | 2 | 1 |
| Robert Curtis Brown | Ambassador | Attorney John Wicker, Scott Simpson | 1 | 2 |
| Titus Welliver | Commander Maxwell "Max" Burke | Gordon | 2 | 1 |
| Allan Royal | Captain Braxton | Dr. Bernard White, Dr. Dennis Murphy | 2 | 2 |
| Michael Spound | Lorrum | Michael Berenson | 2 | 2 |
| Francis Guinan | Minister Kray, Zar | A.D.A. Mitchell Field, Gary Newman, Mitchell Field | 2 | 3 |
| Adrian Sparks | Magistrate | Dr. Maxwell Joseph | 1 | 1 |
| Alan Oppenheimer | Nezu Ambassador | Dr. Richard Papp, Judge Nelson | 1 | 2 |
| Armand Schultz | Dalby | A.U.S.A. Todd Dickson | 1 | 1 |
| Christopher Darga | Y'Sek | Officer | 1 | 1 |
| Googy Gress | Overlooker | Richard Post | 1 | 1 |
| Jeremy Roberts | Dmitri Valtane | Alan Neel | 1 | 3 |
| John Carroll Lynch | Gerald Moss | Dr. Robert Larson | 1 | 1 |
| John Prosky | Otrin | EPA Attorney Mitchell Kravits | 1 | 3 |
| Mark Harelik | Inspector Kashyk | Michael Agosta | 1 | 1 |
| Mark L. Taylor | Jarlath | Dr. Reichal, Judge Andrew MacDonald, Wiggins' Psychiatrist | 1 | 3 |
| Randy Oglesby | Kir | Dr. Feldman, Judge Kelly White | 1 | 2 |
| Ron Glass | Loken | Judge Kent | 1 | 1 |
| Thomas Kopache | Viorsa | Dr. Harold Manning, Judge Morris Seymour, Mr. Schramm | 1 | 3 |
| Tucker Smallwood | Admiral Bullock | Dr. Henry Matthews, Dr. Mick Benson | 1 | 2 |
| Wayne Péré | Guill | Mitchell Orbis | 1 | 2 |
| Bari Hochwald | Brin | Nancy Huff, Dead Nancy Huff, Defense Attorney | 1 | 4 |
| James Greene | Passerby | Emerson Ray | 1 | 3 |
| Danny Goldring | Alpha Hirogen | Detective Chuck Driscoll | 2 | 1 |
| Michael Kagan | Alien Commander | Judge Keller, Peter Martini | 1 | 2 |
| Scott MacDonald | Rollins | Detective Disaia | 2 | 1 |
| Aaron Lustig | Doctor | Attorney Michael King | 1 | 1 |
| Christopher Shea | Saowin | A.D.A. Martin Beckham | 1 | 1 |
| Daniel Zacapa | Astronomer | Mr. Tabbitt | 1 | 1 |
| Harve Presnell | Q colonel | Judge Dickem | 1 | 1 |
| John Vargas | Tau | Detective Coburn | 1 | 1 |
| Lorna Raver | Q | Pearson's Assistant | 1 | 1 |
| Mark Sheppard | Leucon, Icheb's Father | Eddie Wicks | 1 | 1 |
| Scott Klace | Dremk | Stephen Hatfield | 1 | 1 |
| Mary Anne McGarry | Tabris | Federal Judge Graham | 1 | 2 |
| Bruce French | Ocampa Doctor | Attorney Barry Pederson, Attorney General Walgren, Judge M. Walters | 1 | 3 |
| Brad Greenquist | Demmas | Agent Slauson | 1 | 1 |
| David Doty | Nuu'Bari Miner | Foreman, Judge Robert Bournes | 1 | 2 |
| David Selburg | Toscat | Judge K. Holmes | 1 | 2 |
| Eve Brenner | Jora Mirell | Sybil Walters | 1 | 1 |
| J. Patrick McCormack | Prax | Pierce Stanton | 1 | 1 |
| Jerry Sroka | Laxeth | Attorney Bob Walsh | 1 | 1 |
| Kelly Connell | Sklar | Dr. Noah Peters | 1 | 1 |
| Ray Proscia | Vidiian Commander | Walter Beck | 1 | 1 |
| Sarah Rayne | Elani | Sarah Jamison | 1 | 1 |
| Debi A. Monahan | Adultress | Marsha Burns | 1 | 2 |
| Douglas Spain | Young Chakotay | Miguel Javalera | 1 | 1 |
| Kellie Waymire | Layna | Dr. Marshall | 1 | 1 |
| Paul O'Brien | Geral | D.A. Peter Thompson | 1 | 1 |
| Derek Anthony | Ensign | Foreman, Officer #1 | 1 | 2 |
| Mark Rafael Truitt | Yosa | Atty. Stankowski | 1 | 2 |
| Barry Wiggins | Policeman | Police Officer | 1 | 1 |
| Kat Sawyer | Astronaut | Foreperson | 1 | 1 |
| Ted Barba | Malin | Raymond Breyer | 1 | 1 |
| Scott Alan Smith | Doyle | Doctor | 1 | 1 |
← Star Trek: Voyager × The Practice
Cast data from TVmaze, licensed CC BY-SA 4.0.