All 119 actors in both CSI: Crime Scene Investigation and Law & Order: LA
119 actors have appeared in both CSI: Crime Scene Investigation and Law & Order: LA, across 359 episodes. The most-credited is Geoffrey Rivas, Det. Sam Vega in CSI: Crime Scene Investigation and Mark Robles in Law & Order: LA.
| Actor | In CSI: Crime Scene Investigation | In Law & Order: LA | Eps | Eps |
|---|---|---|---|---|
| Geoffrey Rivas | Det. Sam Vega | Mark Robles | 20 | 1 |
| Conor O'Farrell | Undersheriff McKeen | Defense Attorney Lane Garfield | 13 | 2 |
| Titus Welliver | Mark Gabriel | Attorney Kennedy | 3 | 1 |
| Andy Umberger | Rob Rhoda | Chief Thompson | 1 | 2 |
| Elaine Kagan | Mrs. Clemmonds | Judge Sonia Hirsh | 1 | 2 |
| Brandon W. Jones | Charlie Russell | Logan Rudman | 4 | 1 |
| Danielle Panabaker | Girl | Chelsea Sennett | 1 | 1 |
| Dean Norris | Phil Baker | Bob Kentner | 3 | 1 |
| Jessica Ann Collins | Natalie Davis | Liz Bennett | 3 | 1 |
| Marc Blucas | Adam King | Chip Jarrow | 1 | 1 |
| Currie Graham | Willie Cutler, Stanley Hunter | Defense Attorney Max Hearn | 3 | 2 |
| Meredith Scott Lynn | Carol Allred | Attorney | 4 | 1 |
| David Meunier | Barry Lawrence, Boyd Waldrip | Charles Roker | 2 | 1 |
| Don Stark | Sam Hopkins | Mayor Jack Velman | 1 | 1 |
| Greg Collins | Officer Arvington | Sgt. Blaine | 4 | 1 |
| Jim Beaver | Stanley Tanner | Frank Loomis | 2 | 1 |
| Patrick Fischler | Mr. Lee / Wolfie | Defense Attorney Josh Solomon | 1 | 1 |
| John Churchill | Shibley | Don Meech | 3 | 1 |
| Cory Blevins | Surgeon | Uni | 2 | 1 |
| Luke Kleintank | Jake, Jake / Usher | Jesse Beckman | 2 | 1 |
| Peter MacKenzie | Dr. Eisling | Attorney Simms | 2 | 1 |
| Raphael Sbarge | Aaron Laner, Donald Fiore | Dennis Ackroyd | 2 | 1 |
| Chris Coy | Melvin Dodge | Dave Harlin | 1 | 1 |
| Dale Dickey | Waitress | Sally Ricks | 1 | 1 |
| Jodi Lyn O'Keefe | Kaye Shelton | Jenn Mackie | 1 | 1 |
| Jose Pablo Cantillo | I.A. Officer Galvez | Caesar Vargas | 1 | 1 |
| Julio Oscar Mechoso | Dr. Rafael Blanco | Luis Valdez | 1 | 1 |
| Matt Malloy | Max Sullivan | Attorney Limpett | 1 | 1 |
| Natalie Zea | Needra Fenway | Sarah Goodwin | 1 | 1 |
| Reed Diamond | Ray Lester | Franklin Citron | 1 | 1 |
| Rob Benedict | Brian Morley | Adam Yarborough | 1 | 1 |
| Tim Guinee | Father Frank Berlin | Colonel Richards | 1 | 1 |
| Jay Karnes | I.A. Detective Schultz, IA Officer Wagenbach | Jim Roman | 2 | 1 |
| Jeff Kober | Roger Wilder, Walter Douglas Hicks | Toomey | 2 | 1 |
| Bob McCracken | Mason Carter | Bob Reedy | 1 | 1 |
| Charles Malik Whitfield | Ray | Al Hayes | 1 | 1 |
| John de Lancie | General Robert Lansdale | Judge Avery Staynor | 1 | 1 |
| John Kapelos | Duke Rittle | Mark Buckley | 1 | 1 |
| K Callan | Martha James | Louise Hammond | 1 | 1 |
| Kenneth Mitchell | Dalton Burke | Terry Walker | 1 | 1 |
| Nancy Youngblut | Nurse | Jane Lee Rayburn | 2 | 1 |
| Omar Leyva | Vasco Ruiz | Waiter | 2 | 1 |
| Robin Weigert | Dr. Valerie Dino | Larry's Sister | 1 | 1 |
| Shawn Hatosy | Jeff Simon | Larry Sheppard | 1 | 1 |
| Taylor Handley | Max Newman | Eric Kenter | 1 | 1 |
| Tim DeKay | Neal Matthews | Don Alvin | 1 | 1 |
| Tony Plana | Elindio Zapata | Jorge Gomez | 1 | 1 |
| Tina Huang | I.A. Detective Karen Park | Computer Technician Stacey Maris | 1 | 3 |
| Aaron Hill | Carter Grable | Patrick Scott | 1 | 1 |
| Briana Lane | Maddie | Amy Moran | 1 | 1 |
| Christopher Cousins | Ken Wallace | Nelson's Lawyer | 1 | 1 |
| J. Downing | Walter Blaine | Douglas Kasdan | 1 | 1 |
| John Prosky | ADA Vanderpool | Dr. Gouldin | 1 | 1 |
| Lee Tergesen | Martin Hawkins | Patrick Denton | 1 | 1 |
| Melinda Page Hamilton | Jody Cambry | Attorney | 1 | 1 |
| Michael Massee | Stan Richardson | Denis Watson | 1 | 1 |
| Skyler Day | Silvia Grier | Mila Ackroyd | 1 | 1 |
| Steven Culp | Lt. Mendes | Ben Corrigan | 1 | 1 |
| Randy Lowell | Collectibles Dealer, Principal Perrin | Dr. David Grant | 2 | 1 |
| Wiley Pickett | Christian, Training Officer | Fireman #1 | 2 | 1 |
| Al Pugliese | Benny Manduccit | Detective Kavanaugh | 1 | 2 |
| Blake Shields | Blaine, Ronald Tobin | Blake Humphry | 2 | 1 |
| Bonnie Root | Tonya Charles | Maura Dillon | 1 | 1 |
| Colby French | Officer Davis | Doug | 2 | 1 |
| Cooper Huckabee | Gomez, Rick Fetzer | Hal | 2 | 1 |
| Gene Farber | Joe | Paul Mironov | 1 | 1 |
| Harry Groener | Peyton Tallman | Attorney Spicer | 1 | 1 |
| Larry Clarke | Detective Sulik | Don Wheeler | 1 | 1 |
| Lenny Jacobson | Denny Jones | Ray | 1 | 1 |
| Ronnie Gene Blevins | Rudy | Cal Gerrity | 1 | 1 |
| Sam Ball | Kiner | Zack Kinney | 1 | 1 |
| Shannon Lucio | Kristi Holt | Kim Miller | 1 | 1 |
| Susan Park | Paige | Min Ho Lee | 1 | 1 |
| Tom Virtue | Doctor, George | Rogan Malone | 2 | 1 |
| Rocky McMurray | Construction Worker, Surveillance Director | Burt Russell | 2 | 1 |
| Amanda Carlin | Margaret Shorey | Susan Foreman | 1 | 1 |
| Andrew Rothenberg | Walter Ellis | Stanley Vaughn | 1 | 1 |
| Chris Ellis | Warden Clinton Malton | D.A. Walter Exley | 1 | 1 |
| Frederick Koehler | Danny Hillman | SID Tech Gilbert | 1 | 1 |
| Jessica Lu | Lily | Kai Ng | 1 | 1 |
| Lori Alan | Valerie Esposito | Robbi Nathan | 1 | 1 |
| Marlene Forte | Mrs. Pamela Gentry | Inez Gomez | 1 | 1 |
| Rick Hoffman | Michael Raykirk | Attorney Miller | 1 | 1 |
| Adam Johnson | Bob Geer | Repairman | 1 | 1 |
| Hudson Leick | Dr. Jeri Cohen | Carly's Personal Shopper | 1 | 1 |
| Ivo Nandi | Max Girard | Fedora Man | 1 | 1 |
| John Benjamin Hickey | Dr. Sidney Cornfeld | Congressman Thomas Nelson | 1 | 1 |
| Kate McNeil | Sharon Woodbury | Patricia Nelson | 1 | 1 |
| Kitty Swink | Reporter #2 | Judge Vera Benaski | 1 | 1 |
| Daphne Ashbrook | Buffet Manager | Jodi Morris | 1 | 1 |
| Dennis Cockrum | Roger Edmonds | Steve Morris | 1 | 1 |
| Derek Ray | Lead Fireman | Del Broadleaf | 1 | 1 |
| Erin Foster | Crackhead Girl | Carmen | 1 | 1 |
| Henri Lubatti | Charles Pinscher | Doctor | 1 | 1 |
| Ray Stoney | Suspect #1 | SID Tech Carson | 1 | 1 |
| Robin Thomas | Bill Dorton | Marty Fox | 1 | 1 |
| Vaughn Armstrong | Dr. Dennis Keil | Mike Foreman | 1 | 1 |
| Joan McMurtrey | Mrs. Marlowe | Rebecca's Mother | 1 | 1 |
| Lucinda Jenney | Sheriff Beth McGuire | Professor | 1 | 1 |
| Yves Bright | Rob Rios | Trevor Knight | 1 | 1 |
| Emiliano Torres | Ernesto Sanza | Parking Jockey | 1 | 1 |
| John Rosenfeld | Child Advocate | Ken Friedman | 1 | 1 |
| Scott Klace | Carl Johnson | Fire Chief Gable | 1 | 1 |
| Asante Jones | Swat Captain | Sgt. Gates | 1 | 1 |
| Dave Florek | Old Man | Mr. Gill | 1 | 1 |
| Glenn Taranto | Bus Driver | Sergeant Greeley | 1 | 1 |
| Karis Campbell | Tara Weathers | Carolyn Yarborough | 1 | 1 |
| Leonard Kelly-Young | Al | Sergeant Martel | 1 | 1 |
| Michael Enright | Sammy Cutler | Nick Libergal | 1 | 1 |
| Michael Raynor | Alvin Macalino | Vince Braden | 1 | 1 |
| Yolanda Snowball | Motel Maid | Court Clerk | 1 | 1 |
| Frank Clem | Caleb Carson | Mr. Wilson | 1 | 1 |
| Jeris Lee Poindexter | Grandpa Calvin | Homeless Man | 1 | 1 |
| Brian Fong | Korean Father | Shin Ho Lee | 1 | 1 |
| Keith Pillow | Public Defender | Judge James Deegan | 1 | 1 |
| Amy Benedict | Mrs. Bassengi | Amy Libergal | 1 | 1 |
| Andy Fischer-Price | Ian Jones | Stevie | 1 | 1 |
| Chris Flanders | Room Manager | OIS Detective | 1 | 1 |
| Lorry Goldman | Lou | Robed Man | 1 | 1 |
← CSI: Crime Scene Investigation × Law & Order: LA
Cast data from TVmaze, licensed CC BY-SA 4.0.