All 166 actors in both Law & Order: LA and NCIS
166 actors have appeared in both Law & Order: LA and NCIS, across 530 episodes. The most-credited is Peter Coyote, District Attorney Jerry Hardin in Law & Order: LA and Ned Quinn in NCIS.
| Actor | In Law & Order: LA | In NCIS | Eps | Eps |
|---|---|---|---|---|
| Peter Coyote | District Attorney Jerry Hardin | Ned Quinn | 8 | 1 |
| Marco Sanchez | Felipe Pena | Alejandro Rivera | 1 | 7 |
| Andy Umberger | Chief Thompson | FBI Agent Freedman | 2 | 1 |
| James Morrison | Gray Campbell | CIA Assistant Director Jonathan Overmeier, U.S. Senator John Phillips | 1 | 2 |
| K Callan | Louise Hammond | Bertha Jones-Delacroix, Grace Mullen | 1 | 2 |
| Leonard Robinson | Officer Meade | Metro Police Officer Jackson | 1 | 2 |
| Tony Pasqualini | Judge Rudolph Patino | Man | 2 | 1 |
| Teri Polo | Casey Winters | Vivian Kolchak | 3 | 2 |
| Charles Carpenter | Guard #1 | Sheriff Marcus Mayes | 1 | 1 |
| Clyde Kusatsu | Judge Bradley Rumford | Benjamin Franklin, Mister Takumi Rin | 2 | 2 |
| Dee Wallace | Ellen Powell | Claire Hall | 1 | 1 |
| Lenny Jacobson | Ray | Security Guard | 1 | 1 |
| Lisa Kaminir | Deputy D.A. Karen Paley | Dr. Romero | 1 | 1 |
| Lise Simms | Coach Gayle Hanson | Kenna Reynolds | 1 | 1 |
| Michael O'Neill | Trudy's Attorney | Former NCIS Special Agent Riley McCallister | 1 | 3 |
| Oded Fehr | Nick Manto | Ilan Bodnar | 1 | 3 |
| Raphael Sbarge | Dennis Ackroyd | Rupert Kritzer | 1 | 1 |
| Rob Benedict | Adam Yarborough | Aaron Alan Wright | 1 | 1 |
| Tim DeKay | Don Alvin | Senator Patrick Kiley | 1 | 1 |
| Asante Jones | Sgt. Gates | Homicide Detective Andy Kochofis | 1 | 2 |
| Melinda Page Hamilton | Attorney | Kathy Sheldon, Vanessa Tillman | 1 | 2 |
| Scott Lawrence | Judge | DEA Agent Raymond Frank, Navy Captain Thomas Lind | 1 | 2 |
| Catherine Dent | Defense Attorney | Former NCIS Special Agent Whitney Sharp | 1 | 2 |
| Christopher Cousins | Nelson's Lawyer | Jordan Jones | 1 | 1 |
| Conor O'Farrell | Defense Attorney Lane Garfield | William Danforth | 2 | 1 |
| David Meunier | Charles Roker | Wade Cutler | 1 | 1 |
| Dean Norris | Bob Kentner | Vestman | 1 | 1 |
| Denise Crosby | Diana Burt | Secretary of the Navy Hattie Taylor | 1 | 1 |
| Dennis Cockrum | Steve Morris | NSA Tech, Senator | 1 | 2 |
| Don Stark | Mayor Jack Velman | Marty Fiero | 1 | 1 |
| Eric Bruskotter | Bill Jacobs | Lester | 1 | 1 |
| Jim Beaver | Frank Loomis | Captain Tom O’Rourke | 1 | 1 |
| Kate McNeil | Patricia Nelson | Commander Green | 1 | 1 |
| Patrick Fischler | Defense Attorney Josh Solomon | George Stenner | 1 | 1 |
| Rachel DiPillo | Sylvie Lester | Chelsea | 1 | 1 |
| Steven Culp | Ben Corrigan | Navy Cmdr. William Skinner | 1 | 1 |
| Tim Guinee | Colonel Richards | Bart Lemming | 1 | 1 |
| Tina Huang | Computer Technician Stacey Maris | Captain Boggs | 3 | 1 |
| John Rosenfeld | Ken Friedman | FBI Agent Charles | 1 | 2 |
| Andrew Rothenberg | Stanley Vaughn | Bruce Solomon | 1 | 1 |
| Bellamy Young | Monica Jarrow | ATF Agent Melinda Stone | 1 | 1 |
| Chris Coy | Dave Harlin | Riley Davis | 1 | 1 |
| Daphne Ashbrook | Jodi Morris | Donna Peyton | 1 | 1 |
| Dave Florek | Mr. Gill | Virgil McKeever | 1 | 1 |
| Frederick Koehler | SID Tech Gilbert | Simon Gravy | 1 | 1 |
| Heather Mazur | Dr. Phoebe Coburn | Laura Strike-DePalma | 1 | 1 |
| Ivo Nandi | Fedora Man | Manny Varigan | 1 | 1 |
| Jason Beghe | Raymond Garson | Blake Martin | 1 | 1 |
| Joel Brooks | Manny | Ronnie Mustard | 1 | 1 |
| John Kapelos | Mark Buckley | Vice Principal Vic Castor | 1 | 1 |
| Jose Pablo Cantillo | Caesar Vargas | DEA Agent Mark Sisco | 1 | 1 |
| Julian Acosta | Gang Unit Detective Jorge Rivas | Matt Burns | 1 | 1 |
| Kevin Ashworth | Robert Schuler | Richard Lane | 1 | 1 |
| Mark Bloom | Rich Yates | Dr. Marley | 1 | 1 |
| Matt Malloy | Attorney Limpett | George Pardo | 1 | 1 |
| Nicki Micheaux | Vanessa Hayes | Metro P.D. Detective Martha Mayer | 1 | 1 |
| Peter MacKenzie | Attorney Simms | Jack Murdoch | 1 | 1 |
| Robert Baker | Buddy | Seaman | 1 | 1 |
| Sophina Brown | Julia Chaffey | Navy Reserve Lieutenant Callie Daniels | 1 | 1 |
| William O'Leary | Joe Laight | Chief Martin Freydano | 1 | 1 |
| Yvonne DeLarosa | Maria Alcazar | Navy Exchange Clerk | 1 | 1 |
| Aaron Hill | Patrick Scott | Navy Seal Lieutenant William Blake | 1 | 1 |
| Bob McCracken | Bob Reedy | Joshua Drewe | 1 | 1 |
| Brooke Lyons | Greta Thomas | Tammy LaRoche | 1 | 1 |
| Cory Blevins | Uni | Father | 1 | 1 |
| Dohn Norwood | Mr. Tasker | Fairfax County P.D. Sergeant Sherman T. Harper | 1 | 1 |
| Elizabeth Liang | Aldona De Leon | NCIS REACT Agent Jones | 1 | 2 |
| Erin Cahill | Annette Kay | Navy Lieutenant Jessica Summers | 1 | 1 |
| Henri Lubatti | Doctor | Andre Yorka | 1 | 1 |
| JoBeth Williams | Mrs. Walker | Leona Phelps | 1 | 1 |
| Justin Huen | East Pasadena Cop | Private Maritime Security Guard Lenny | 1 | 1 |
| Kenneth Mitchell | Terry Walker | Nathan Curtis | 1 | 1 |
| Larry Herron | Sgt. Daniel Bart | Master Gunnery Sergeant Jason Kelly | 1 | 1 |
| Lori Alan | Robbi Nathan | Warden Diana Tully | 1 | 1 |
| Matthew Alan | Billy Russ | Navy Lieutenant Paul Booth | 1 | 1 |
| Mauricio Mendoza | Mexican Border Guard | Rico Caldas | 1 | 1 |
| Mira Furlan | Maria Olsen | Dina Risi | 1 | 1 |
| Rebecca Lowman | Anna Denton | Navy Lieutenant Lisa Mason | 1 | 1 |
| Rob Brownstein | Brandon Abel | Wayne Gordon | 1 | 1 |
| Ronnie Gene Blevins | Cal Gerrity | Ronald Nowakowski | 1 | 1 |
| Shannon Lucio | Kim Miller | Amy Harrison | 1 | 1 |
| Titus Welliver | Attorney Kennedy | Navy Capt. Roger Walsh | 1 | 1 |
| Lawrence Pressman | Judge Justin Conway | Dr. Russell Pike, Secret Service Director | 1 | 2 |
| Robert Cicchini | Restaurant Owner | Agent Daniel Snyder | 1 | 2 |
| Roberto Sanchez | Deputy Warden Fisher | Jose | 2 | 1 |
| Briana Lane | Amy Moran | Diane Boyle | 1 | 1 |
| Christine Dunford | Attorney Finley | Jeri Fleckman | 1 | 1 |
| Erin Ross | Libby Crane | Melissa | 1 | 1 |
| Glenn Taranto | Sergeant Greeley | Eddie Kowolski | 1 | 1 |
| James Huang | Agent Tom Hsu | Petty Officer Wong | 1 | 1 |
| Karis Campbell | Carolyn Yarborough | Navy Lt. Elaine Taylor | 1 | 1 |
| Larry Clarke | Don Wheeler | Director | 1 | 1 |
| Nancy Youngblut | Jane Lee Rayburn | Joanna "Mama Jo" Dalton | 1 | 1 |
| Roxana Brusso | Ava Ruiz | Noemi Cruz | 1 | 1 |
| Yolanda Snowball | Court Clerk | Meeting Secretary | 1 | 1 |
| Al Espinosa | Consul Ortega | Tom Verne | 1 | 1 |
| Alla Korot | Anna Ackroyd | Linda DeMarco | 1 | 1 |
| Andi Carnick | Mary Garrett | Penny Block | 1 | 1 |
| Anjali Bhimani | Hallie Capshaw | Samantha Petrie | 1 | 1 |
| Daniel Hugh Kelly | Judge Royce | Admiral Kendall | 1 | 1 |
| David Pevsner | Stuart Lohman | Driver | 1 | 1 |
| Frank Clem | Mr. Wilson | Phil Rutland | 1 | 1 |
| J. Downing | Douglas Kasdan | Avis Boyle | 1 | 1 |
| John Pleshette | Judge | Tom Crawley | 1 | 1 |
| Lauren Sweetser | Tanya Greene | Macy Grant | 1 | 1 |
| Michael Hagiwara | Foreperson | Scholarly Man #1 | 1 | 1 |
| Ray Stoney | SID Tech Carson | Ben Golden | 1 | 1 |
| Rich Hutchman | Phil John | Deputy Andrews | 1 | 1 |
| Rick Hoffman | Attorney Miller | Kelvin Ridgeway | 1 | 1 |
| Roberta Hanlen | Lena Holloway | Joann Dearing | 1 | 1 |
| Robin McDonald | Chelsea's Lawyer | Loni Braddish | 1 | 1 |
| Rocky McMurray | Burt Russell | Howard County P.D. Officer Ray Mitchell | 1 | 1 |
| Shi Ne Nielson | Hannah | FBI Special Agent Daisy Milner | 1 | 1 |
| Susan Angelo | Louise Rivlin | Admiral's Wife | 1 | 1 |
| Tom Virtue | Rogan Malone | Frank Satner | 1 | 1 |
| Andrea Grano | Coach Jackie Fernandez | Navy Commander Eleadora Rey | 1 | 1 |
| Chris Ellis | D.A. Walter Exley | Gunnery Sgt. John Deluca | 1 | 1 |
| Derek Anthony | Bomb Squad Guy | NCIS Maintenance Worker Lennox Kincaid | 1 | 1 |
| Derek Ray | Del Broadleaf | Navy Lieutenant Commander David Hernandez | 1 | 1 |
| Dimiter D. Marinov | Chess Player #1 | Ghenna Kozlov | 1 | 1 |
| Fred Cross | Paul Roth | Roland Pulvino | 1 | 1 |
| Jesse Johnson | Joe Starke | Robert 'Rob' Bishop | 1 | 1 |
| John O'Brien | Scott Hancox | Bruce | 1 | 1 |
| Kevin Rock | Judge Milton Barber | DoD Liason Harris Klein | 1 | 1 |
| Nick Jandl | Gus Corallo | Michael "Mike" Kettering | 1 | 1 |
| Robin Thomas | Marty Fox | Dr. Neil Fleming | 1 | 1 |
| Scott Klace | Fire Chief Gable | Dr. Timothy Hass | 1 | 1 |
| Bart McCarthy | Ted Mullin | Retired Marine Master Sergeant George Hawkins | 1 | 1 |
| Blake Shields | Blake Humphry | Potential Recruit | 1 | 1 |
| Chris Flanders | OIS Detective | Joseph McBride | 1 | 1 |
| Cooper Huckabee | Hal | Kyle Larson | 1 | 1 |
| Greg Collins | Sgt. Blaine | Police Officer Metro PD | 1 | 1 |
| Greta Sesheta | Helen | Receptionist | 1 | 1 |
| J.R. Cacia | Steve Holt | Metro Police Detective John Carson | 1 | 1 |
| Jacqueline Hahn | Ms. Rathman | Kathy Tolin | 1 | 1 |
| Jeff Harlan | Terry Sullivan | Reverend Miller | 1 | 1 |
| Jeffrey Doornbos | Hal | Marshall Tomko | 1 | 1 |
| June Carryl | Female Uni | Julia Marino | 1 | 1 |
| Leonard Kelly-Young | Sergeant Martel | George Keogh | 1 | 1 |
| Lucy Butler | Ellie Jennings | Roda Robinson | 1 | 1 |
| Marc Aden Gray | Jason Calahan | Navy Captain Jake Marsden | 1 | 1 |
| Mike Falkow | Henry Franklin | Jim Bruno | 1 | 1 |
| Patrick Robert Smith | Burly Suit | Tim Gerber | 1 | 1 |
| Ron Bottitta | Grisha | British Royal Marine Captain William Jamison | 1 | 1 |
| Shannon McClung | SID Ryan Meacham | Boltcutter | 1 | 1 |
| Byrne Offutt | Joe Rivlin | Judd Kearns | 1 | 1 |
| Casey McCarthy | Ellen | Biker Chick | 1 | 1 |
| Jay Jablonski | Barry Baitos | Navy Commander Peter Josephson | 1 | 1 |
| Jesse Luken | Carlton Campbell | Corpsman | 1 | 1 |
| John Prosky | Dr. Gouldin | Carl Dalton | 1 | 1 |
| Laura P. Vega | Flora Ramirez | Maria | 1 | 1 |
| Lou George | Bill Dougherty | Manager | 1 | 1 |
| Michael Peter Bolus | Ben Sarkissian | Max Talia | 1 | 1 |
| Geoffrey Rivas | Mark Robles | Ricardo Guzman | 1 | 1 |
| Nadia Bowers | Sandra Miller | Gwyneth Massey | 1 | 1 |
| Robert Neary | Lt. Stanley Petracelli | Travis Cook | 1 | 1 |
| Samantha Sloyan | Rachel Forester | Emily Goodwin | 1 | 1 |
| Zach Lewis | Captain James Locke | NCIS Mailroom Clerk Roy | 1 | 1 |
| Flor De Maria Chahua | Maria Cruz | Nurse | 1 | 1 |
| Amy Lyndon | Susan Pinkwell | Goldilocks | 1 | 1 |
| Rico E. Anderson | Alec Bratton | Rick Samson | 1 | 1 |
| Tatum Shank | Tracker | Ted | 1 | 1 |
| Wiley Pickett | Fireman #1 | Navy Captain David Wade | 1 | 1 |
| Emiliano Torres | Parking Jockey | Hood #1 | 1 | 1 |
| Kim Estes | Foreman | Minister | 1 | 1 |
| Nicole Pettis | Diana McDermott | Haley | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.