All 209 actors in both FBI and Law & Order
209 actors have appeared in both FBI and Law & Order, across 703 episodes. The most-credited is Thomas Philip O'Neill, M.E. Dr. Neil Mosbach in FBI and Dr. Neil Mosbach in Law & Order.
| Actor | In FBI | In Law & Order | Eps | Eps |
|---|---|---|---|---|
| Thomas Philip O'Neill | M.E. Dr. Neil Mosbach | Dr. Neil Mosbach | 24 | 2 |
| Angel Desai | Reshma Merchant | Judge Roberta Hines, Erica | 1 | 7 |
| Tyrone Mitchell Henderson | Adam Gantry | Judge Arnold Pappas | 1 | 3 |
| Victoria Cartagena | Charlie Martinez | Attorney Yolanda Matos | 1 | 3 |
| Amanda Warren | Sloan Wallace | Camilla Paymor | 1 | 2 |
| Necar Zadegan | Deputy Chief of Station Nikki Reynard | Bonnie Kimura | 2 | 1 |
| Gary Perez | Marcus Warren | Judge Sydney Bolden | 1 | 3 |
| Joelle Carter | Gwen Carter | Donna Richland | 1 | 1 |
| Raphael Sbarge | Gordon Davis | Brian Lee | 1 | 1 |
| Claire Coffee | Anna Vorpe | Andrea Rankin | 4 | 1 |
| Erinn Ruth | Corrine Baker | Rebecca Greenough | 1 | 2 |
| Lisa Emery | June Taxera | Katrina Van Brocklen, Meg Lafferty | 1 | 2 |
| Tawny Cypress | Jillian Starls | Erin Grassley | 1 | 2 |
| Tyler Elliot Burke | Davis Kernick, Grant Warren | Shawn Payne | 2 | 1 |
| Benito Martinez | Joe Becerra | Judge William Moscatello | 1 | 1 |
| Bill Barrett | Joel Lowry | Dylan Phipps | 3 | 1 |
| Chris Bauer | Dan Osborne | Jackie Costa | 1 | 1 |
| Eric William Morris | Jeremy Parks | Derek Nestor | 1 | 1 |
| James Madio | Fire Chief Sims | Andy | 1 | 1 |
| Mark McKinnon | SWAT Operator | Officer Loveless | 6 | 1 |
| Melanie Nicholls-King | Keisha Grant | Principal | 1 | 1 |
| Milauna Jackson | Gina Pratt | Ms. Frazier | 1 | 1 |
| Nick Sandow | Jack Grippo | Bail Agent Andy Grenada | 1 | 1 |
| Peter Jacobson | Jeff Mills | Randolph J. Dworkin | 1 | 1 |
| Sasha Alexander | Valerie Caldwell | Congresswoman Kristin Bartell | 1 | 1 |
| Zach Grenier | Peter Olsen | Ed Zanini | 3 | 1 |
| Daniel Hilt | Bomb Tech Aaron Hill | Dave Bell | 4 | 1 |
| Adam Harrington | Jim Ustis | Henry West | 1 | 1 |
| Donald Paul | Morris Kalu | Lonnie Ballard | 1 | 1 |
| Jorge Chapa | Jay Hicks | Manny Lopez | 1 | 1 |
| Michael Potts | Agent Bruce Ellis | Kenneth Lowell | 1 | 1 |
| Tyron Jones | Roman Bryant | Lt. Ryan Barkley | 1 | 1 |
| Zach McGowan | Dylan Rossi | Cash White | 1 | 1 |
| Paul Scanlan | SWAT Team Leader | Bruce Elliot | 4 | 1 |
| Jeremy Gabriel | Kevin Blake | Jordan Payne | 2 | 1 |
| Sean Michael Gloria | Diego Torres, Ricky Moreno | Javier Diaz | 2 | 1 |
| Andrew Rothenberg | Tommy Ward | David Costa | 1 | 1 |
| Ari Blinder | Doyle Buckler | Jeff Sanders | 1 | 1 |
| Carlos Gómez | NYPD Detective Chavez | Mark Mendez | 1 | 1 |
| Chance Kelly | ADIC Hawkins | Admiral Rusten Garvey | 1 | 1 |
| Dennis Flanagan | Jason Morgan | Derek Quinn | 1 | 1 |
| Kara Jackson | Lydia Forman | Debra Myers | 1 | 1 |
| Kenneth Trujillo | Steve Martinez | Vincent Martinez | 1 | 1 |
| Michael Park | Senator Walt Hoffman | Eric Wise | 1 | 1 |
| Pasha Lychnikoff | Andrei Ovechkin | Daniel Rublev | 1 | 1 |
| Samantha Soule | Emma Kane | Ashley Davenport | 1 | 1 |
| Tommy Dewey | Nathan Gold | Tate Harris III | 1 | 1 |
| Anita Castillo-Halvorssen | State Dept. Rep Yolanda Cruz | Reporter #1 | 2 | 1 |
| Matthew Sean Blumm | Dustin Hunt, Jeff Whalen | Randall Foster | 2 | 1 |
| Patrick Voss Davis | Kevin Thomas | Blake "G Ticket" Hughes, Nick Rossi | 1 | 2 |
| Amelia Workman | BAU Psychologist | Dr. Georgia Lebow | 1 | 1 |
| Anabella Raye | Club Girl #1 | Chloe Thompson | 1 | 1 |
| Benton Greene | Russell Griffin | JAG Attorney | 1 | 1 |
| Chaundre Hall-Broomfield | Greg Robinson | Troy Booker | 1 | 1 |
| Christian Conn | Matthew Sawyer | Robert Myers | 1 | 1 |
| Darren Goldstein | Nathan Ford | John Richardson | 1 | 1 |
| David T. Patterson | Alex Kincade | Jesse Malloy | 1 | 1 |
| Declan Eells | Biker | Benjamin Hoffman | 1 | 1 |
| Ellen Adair | Olivia Blake | Dr. Angela Jeffers | 1 | 1 |
| George R. Sheffey | Mr. Musk | Jack Morley | 1 | 1 |
| Jamie Guyer | Agent One, Det. Teresa Bonner | CSU One | 2 | 2 |
| Jerome Harmann-Hardeman | Uncle Gary | Attorney Joseph Hart | 1 | 1 |
| Laura Shoop | Nancy O'Connor | Linda Campisi | 1 | 1 |
| Lucas Kerr | Cam Buckley | Jonathan Fields | 1 | 1 |
| Mark Kenneth Smaltz | John D'Amato | Judge William Koehler | 1 | 1 |
| Maureen Sebastian | Sarah Baines | Vanessa Keller | 1 | 1 |
| Mike McGowan | DEA Agent Matthew Bush | Roger Massey | 1 | 1 |
| Nathan Darrow | Ron Drexler | Scott Gleacher | 1 | 1 |
| Sayra Player | Sandy Ackerman | Rachel Alpert | 1 | 1 |
| Scott Bryce | Paul Garett | Nathan Alpert | 1 | 1 |
| Shannon Marie Sullivan | Lisa Blake | Amanda Hoyt | 1 | 1 |
| Kyle W. Brown | NYPD Officer, Suffolk Cop | Uni Two | 2 | 1 |
| Michael Quinlan | Nathan Tate, Ron Widener | Insurance CEO One | 2 | 1 |
| Atika Greene | ND Agent | Officer Garrett | 1 | 1 |
| Chamblee Ferguson | Mr. Sterling | Mark Turner | 1 | 1 |
| David Wenzel | Jeremy Brosnihan | NYPD Detective | 1 | 1 |
| Evelyn Howe | Agent Kenya Litman | Crime Scene Investigator | 1 | 1 |
| Francesca Faridany | Jennifer Hilton | Dana Clarkson | 1 | 1 |
| Garrett Richmond | Ace / Bartender, Jared Huxley | Eriq Gwynn | 2 | 1 |
| Jacob A. Ware | Dave Parkin | Ben Stafford | 1 | 1 |
| Jason Babinsky | Daniel Ruskin | Phillip Klein | 1 | 1 |
| Jonathan von Mering | DHS Rep Tony | Jury Foreperson | 2 | 1 |
| Misha Kuznetsov | Maksim Petrov | Sergei Parkov | 1 | 1 |
| Natalie Smith | Mrs. Sawyer | Elizabeth Barlowe | 1 | 1 |
| Nicole Ansari-Cox | Michelle Gerbier | Mrs. Maroun | 1 | 1 |
| Patricia R. Floyd | Martha Wax | Aunt Althea | 1 | 1 |
| Patrick Mulvey | David Owen | Bruce Platt | 1 | 1 |
| Tara Westwood | Margaret Chase | Julia Baxter | 1 | 1 |
| Tobias Truvillion | Trey Cooper | Shane Willis | 1 | 1 |
| Kemo Coleman | ATF Rep Andre | Det. Montrell Davis, Detective Jalen Walton | 1 | 2 |
| Alexander Roberts | Jason Tanner | Uni One | 1 | 1 |
| Audrey Lynn Weston | Teresa Almonte | Dr. Shannon Andrews | 1 | 1 |
| Bradley Tejeda | Felix Serrano | Edgar | 1 | 1 |
| Danny Garcia | Benny Gomez | Virgil Gilbert | 1 | 1 |
| Elia Monte-Brown | Andrea Navarro | Suzanne Forrester | 1 | 1 |
| Hank Strong | Nelson | Intimidating Man | 1 | 1 |
| Ian Poake | Nicholas Katz | Tommy Calfo | 1 | 1 |
| Jamar Greene | Bouncer | Ruben Grandy | 1 | 1 |
| Kristopher Charles | Assistant District Attorney | Donnie Preston | 1 | 1 |
| Kushtrim Hoxha | Maikel Kuriev | Pavlo Golub | 1 | 1 |
| Arash Mokhtar | Hakeen Abbas | Dr. Kurt Galen | 1 | 1 |
| Erica Sweany | Cassie Galloway | Sarah Heartwood | 1 | 1 |
| Ian Bell | Sniper | John Nelson | 1 | 1 |
| Jackson Dorfmann | Grayson Edwards | Andre | 1 | 1 |
| John Ford-Dunker | Red-Haired CO | Young Man | 1 | 1 |
| Meredith Handerhan | Taryn McMay | Judge Emily Hicks | 1 | 1 |
| Robin S. Walker | Anna | ADIC | 1 | 1 |
| Zeus Taylor | Warren Cooper | Luke Hines | 1 | 1 |
| Alison Chace | Colleen Curtis | Margaret Keating | 1 | 1 |
| Annette Berning | Imogen Pierce | Angela Cole | 1 | 1 |
| Claire Karpen | Emily Stanton | Ms. Barone | 1 | 1 |
| Dawn Yanek | Reporter #2 | Reporter One | 1 | 1 |
| Drew Phillips | Gary Smalls | Street Dealer | 1 | 1 |
| Fay Ann Lee | Lieutenant Ng | Delores Sung | 1 | 1 |
| Ian Stuart | Frank Silver | Austin Pond | 1 | 1 |
| Jamal Thomas | SWAT Commander | Attorney Brian Lindmark | 1 | 1 |
| Marcus Ho | Professor Cameron Wu | Professor Tao Chen | 1 | 1 |
| Mike Bash | Dylan McKelvie | Lucas Ryan | 1 | 1 |
| Wayne Pyle | David Lakutis | Dr. Stewart Moore | 1 | 1 |
| Devin Vega | Jasper Ray, Teenage Resident | Edgar | 2 | 1 |
| Carol Todd | NYPD Commissioner Gates | Norma Hansen | 1 | 1 |
| Chad Knorr | S&M Dude | Clint Braddock | 1 | 1 |
| Chanel Carroll | FPS Detective Kim Hollins | Uni | 1 | 1 |
| Claudia Nell McCoy | Woman | Sylvia Worth | 1 | 1 |
| Douglas Everett Davis | Doctor Paul Hendrix | Attorney Mike Hall | 1 | 1 |
| Harlen Ernest | Jack Knowles | Terrence Lamont | 1 | 1 |
| Jay Hieron | Guard #1 | Taxi Driver | 1 | 1 |
| Jessie Hooker-Bailey | Emily Fallin | Uni | 1 | 1 |
| Justin Gentry | SWAT Team Leader | Officer Steve Wagner | 1 | 1 |
| Justine J. Hall | Tonya Singler | Jury Foreperson | 1 | 1 |
| Lolita Foster | AUSA Theresa Morgan | Kim Shelton | 1 | 1 |
| Marsha Regis | Jemila Scott | Cheryl Stewart | 1 | 1 |
| Mike Funk | Dr. Raymond Kassabian | Officer Gene Blair | 1 | 1 |
| Nat Cassidy | McCain | Noah Winters | 1 | 1 |
| Sal Rendino | Det. Monroe | Warden | 1 | 1 |
| Shane Jensen | Clerk | Bistro Manager | 1 | 1 |
| Sprague Theobald | Norman Green | Lars Goodwin | 1 | 1 |
| Warren Bub | David Mills | Supervisor | 1 | 1 |
| Whitney Bashor | Karen Stafford | Samantha Morris | 1 | 1 |
| Al Martin | Agent Richard Brown | Gambler | 1 | 1 |
| Bjorn DuPaty | Wilson Corya | Terrence Stewart | 1 | 1 |
| Carlos Rodriguez | Thug | Jury Foreperson | 1 | 1 |
| Charley Tucker | Local Police Chief | Mike Costello | 1 | 1 |
| J. Zane Stephens | Chip McCaffrey | Nightclub Manager | 1 | 1 |
| Jack O'Neill | Therapist | Attorney Anthony Fraiser | 1 | 1 |
| James Camacho | Delivery Person | Gardener #1 | 1 | 1 |
| Jason SweetTooth Williams | Dock Master | Juror 211 | 1 | 1 |
| Jequrey Slaton | Campus Security Guard | Steven Booker | 1 | 1 |
| José Alvarez | Aggro Sailor | Seaman Harris | 1 | 1 |
| Luz Ozuna | NYPD Detective Hill | Dr. Roberta Diaz | 1 | 1 |
| Marc Basil | Ray LaForge | Marcus Wright | 1 | 1 |
| Raegan Vaughn | Girl | Valerie Adams | 1 | 1 |
| Ron Scott | Police Chief Bailey | Steve Campisi | 1 | 1 |
| Travon McCall | Lawyer | Ray Wilson | 1 | 1 |
| William Phelps | Daniel Khan | Jonas Whilling | 1 | 1 |
| Angela Jeanneau | US Attorney Chan | Megan | 1 | 1 |
| Angelo Maldonado Jr | Santa | Trash Man | 1 | 1 |
| Davy Raphaely | Jack Fleming | Party Goer One | 1 | 1 |
| Erica Mansfield | Angela Lane | Jessica Raymer | 1 | 1 |
| Grace Aiello Antczak | Meghan Dolan | Woman Three | 1 | 1 |
| Grayson DeJesus | Trauma Surgeon | Michael Higueres | 1 | 1 |
| James M. Reilly | Derek Rattler | Officer Tim Farley | 1 | 1 |
| Matthew Wautier-Rodriguez | Arturo Reyes | Miguel Lopez | 1 | 1 |
| Neil Dawson | NYPD Det. Dan Gilmore | Declan Dell | 1 | 1 |
| Nick Denning | Officer Rudolph | Clerk | 1 | 1 |
| Rami Margron | MI5 Agent Dunne | Emma Atkins | 1 | 1 |
| Savannah Frazier | Female | Erin Thayer | 1 | 1 |
| Tom Day | NYFD Battalion Chief | AUSA Patrick Alexander | 1 | 1 |
| Vanessa R. Butler | State Police Officer Gates | Monica Beasley | 1 | 1 |
| Allison Walter | Susan Webb | Sarah Harper | 1 | 1 |
| Andrew Mauney | David Hirsch | Greg Donnelly | 1 | 1 |
| Andrew Mayer | DHS Tech | Manager | 1 | 1 |
| Chris Wendelken | Perry Hinton | Robert Fletcher | 1 | 1 |
| Darius Wright | Rob Holden | Uni One | 1 | 1 |
| Evari L. Pickett | Uzi Morris | MLI | 1 | 1 |
| Gilbert Cruz | Carlos Cuellar | Ron Moffit | 1 | 1 |
| Gisela Adisa | Lisa Jones | Bernice Peterson | 1 | 1 |
| Hannah Adrian | Stripper #1 | Melanie South | 1 | 1 |
| Jeffrey Mark Cusumano | David Gutman | Guest | 1 | 1 |
| Jeremy Rafal | Passerby #2 | Patron One | 1 | 1 |
| Joseph Cannon | Barrett Caine | Toby Bass | 1 | 1 |
| Lianne Marie Dobbs | Harper | Abby Young | 1 | 1 |
| Marchelle Thurman | Police Sargeant Jones | Sara (Crime Scene Detective) | 1 | 1 |
| Morgan McGhee | Birthday Girl | Sarah Baker | 1 | 1 |
| Rich Henkels | Senator Daniel Drew | Charles Harper | 1 | 1 |
| Vincent Loretta | Bodyguard Two | Uni 1 | 1 | 1 |
| Daniel Joseph Pennacchi | Bradley McCoy | Foreman | 1 | 1 |
| Eileen Weisinger | Sharon Williams | Pedestrian | 1 | 1 |
| Jonathan Strait | Gerald Becker | Cam's Father | 1 | 1 |
| L. James | Cabbie | Obie White | 1 | 1 |
| Stephanie Martignetti | Laura Davis | Allison Knight | 1 | 1 |
| Alex Curtis | Patrick Hammond | Reporter Two | 1 | 1 |
| Ali Badalov | Sniper | Seaman Nicholls | 1 | 1 |
| Brad Fraizer | Trooper Fox | Steve Herlihy | 1 | 1 |
| Davis Duffield | Abe Dennings | Mark Cooney | 1 | 1 |
| Elina Golde | Marina Kostova | Christina Watkins | 1 | 1 |
| Lanett Tachel | Concerned Civilian | Gate Agent | 1 | 1 |
| Sean Church-Gonzalez | Protestor Three | Faux Gunman Two | 1 | 1 |
| Thiago Macklin | Sergio | Nurse | 1 | 1 |
| Gina Daniels | NYPD Detective Smailes | Lydia Baker | 1 | 1 |
| Juan Carlos Díaz | Garbage Truck Driver | Miguel Perez | 1 | 1 |
| Alexandra Avezova | Rowan | Ava Marchenko | 1 | 1 |
| Marcha Kia | Female Student | Uni | 1 | 1 |
| Nixon Cesar | Citzen One | Cop One | 1 | 1 |
| Danae Nason | Ann Reagan | Nurse Marina Bezic | 1 | 1 |
| Earle Hugens | Neighbor / Super | Nosey Neighbor | 1 | 1 |
| Mia Caro | NYPD Detective Chandler | Officer Stephanie Blair | 1 | 1 |
| Barbra Wengerd | Jan Rudinsky | Patti Watkins | 1 | 1 |
| David Manuele | Josh Avery | Sebastian Meade | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.