All 66 actors in both NCIS and Tracker
66 actors have appeared in both NCIS and Tracker, across 565 episodes. The most-credited is Seamus Dever, NCIS Deputy Director Gabriel LaRoche, Graham Thomas in NCIS and Max Miller in Tracker.
| Actor | In NCIS | In Tracker | Eps | Eps |
|---|---|---|---|---|
| Seamus Dever | NCIS Deputy Director Gabriel LaRoche, Graham Thomas | Max Miller | 7 | 1 |
| Sofia Pernas | Marine First Lieutenant Gabriela Flores | Billie Matalon | 2 | 5 |
| Pej Vahdat | Nigel Hakim, Balesh Sassnid | Leo Sharf | 3 | 3 |
| Al Sapienza | Maurice Riva, Cmdr. William Foley | Rick Lindo | 3 | 1 |
| Briana Venskus-Vazquez | Joanna | FBI Supervisory Special Agent Beth Temple | 1 | 1 |
| Brooke Nevin | Rachael Sparks | Patti Palmer | 1 | 1 |
| Dylan Bruce | Justin Fanniker | Nate Riggins | 1 | 1 |
| Jacqueline Obradors | Paloma Reynosa | Sheriff Walcott | 3 | 1 |
| Lenny Jacobson | Security Guard | Don Schneider | 1 | 1 |
| Michael O'Neill | Former NCIS Special Agent Riley McCallister | Buck Avery | 3 | 1 |
| Brad Beyer | Marine Captain Joe Westcott | Hal Morrison | 2 | 1 |
| Chad Michael Collins | Major Matt Malone, Navy Petty Officer First Class Simon Craig | Finn Helms | 2 | 1 |
| Omid Abtahi | Saleem Ulman | Harith Holmes | 2 | 1 |
| Annalisa Cochrane | Lisa Swenson | Riley Adams | 1 | 1 |
| April Parker Jones | Elaine Davis | Dr. Iris Blair | 1 | 1 |
| Benito Martinez | Detective Conklin | Dale Buchanan | 1 | 1 |
| Christopher Shyer | Kyle Boone | Dr. Brett Hooper | 1 | 1 |
| Dana L. Wilson | Doctor Erica Bell | Deborah Porter | 1 | 1 |
| Deborah Strang | Diane Warner | Ava Kinderson | 1 | 1 |
| Elyse Levesque | Frauke Biedermann | Sara Clark | 1 | 1 |
| Jed Rees | Mashir Malik | Errol Price | 1 | 1 |
| Jeri Ryan | Rebecca Chase | Dr. Serena Jukic | 1 | 2 |
| Joseph Julian Soria | Victor "Popeye" Carmado | Vargas | 1 | 1 |
| Lyndon Smith | Navy Lieutenant Rebecca Weeks | Adelle Mucino | 1 | 1 |
| Mariana Klaveno | Margot DeMint | Alice Baer | 1 | 1 |
| Patrick Fabian | Ray Vincent | Shane Niall | 1 | 1 |
| Steven Culp | Navy Cmdr. William Skinner | Scott Palmer | 1 | 1 |
| Tobias Jelinek | Bodie Whitman | Milo Simmons | 1 | 1 |
| Travis Hammer | Faux County Deputy Randall Sledge | Axel Drell | 1 | 1 |
| Andy Favreau | CIA Officer Jim Hillcot, Navy Lieutenant Eric Kutzler | Victor Christophers | 2 | 1 |
| Glenn Morshower | Cmdr. Robert Peters | McIntyre | 1 | 2 |
| Kai Lennox | Adam Parker | Raymond Ockman | 1 | 2 |
| Sasha Roiz | NCIS Agent Rick Hall | Police Commissioner Ross Bogart | 1 | 2 |
| Alex Carter | Knox Elicott | Nestor Savino | 1 | 1 |
| Chris Browning | NCIS REACT Supervisory Special Agent Tom Dalton | Francis Gable | 1 | 1 |
| Dohn Norwood | Fairfax County P.D. Sergeant Sherman T. Harper | Deon Crawford | 1 | 1 |
| Drew Powell | Fred Hadley | Joe Marsh | 1 | 1 |
| Holly Curran | Ruby Holdren | Monika Lewis | 1 | 1 |
| John Posey | Lance Simmons | Vic | 1 | 1 |
| Karl Makinen | Marine Staff Sgt. James Dawson | Hugo Bowman | 1 | 1 |
| Lindy Booth | Amanda Barrow | Connie King | 1 | 1 |
| Madalyn Horcher | Navy Seaman Jennifer Baxter | Noelle Buchanan | 1 | 1 |
| Mark Engelhardt | Kent Marshall | Emile Lang | 2 | 2 |
| Michael Benyaer | Osman Zoranj | Vince Talbott | 1 | 1 |
| Michelle Harrison | Park Ranger Bobby Hendricks | Lucy Camp | 1 | 1 |
| Peter Onorati | Chief of the Boat | Lowell Parker | 1 | 1 |
| Rob Mayes | Former Marine 2nd Lieutenant Kyle Baxter | Jesse Pardue | 1 | 1 |
| Stefanie von Pfetten | Sara Korby | Rebecca Smith | 1 | 1 |
| Stephen Friedrich | Sid | Josh Greyland | 1 | 1 |
| Taylor Nichols | Hank Galvaston | Lawrence Koontz | 1 | 1 |
| Alex Fernandez | Joseph Flores | Otto Waldron | 2 | 1 |
| Anthony Konechny | Simon Felcher | Ethan "Sully" Sullivan | 1 | 1 |
| Graham Shiels | Martin Jansen | Henry Easton | 1 | 1 |
| Jim Parrack | Nick Hurley | Benjamin Kinderson | 1 | 1 |
| John Lacy | Park Ranger Kett | Gun Shop Owner | 1 | 1 |
| Lesley Fera | Dr. Wendy Lythcott | Dr. Susanna Tate | 1 | 1 |
| Mac Brandt | Jake Spoke | Wade Fairbank | 1 | 1 |
| Max Deacon | Ben Ramsey | Peter Bronwen | 1 | 1 |
| Roshawn Franklin | Crew Chief Rogers | Peter Reynolds | 1 | 1 |
| Molly Hagan | Audrey Vetter | Molly Koontz | 1 | 1 |
| Johnny Rey Diaz | Victor Medina | Alex Silva | 1 | 1 |
| Jon Beavers | Sam Butler | James Clark | 1 | 1 |
| Mathew Yanagiya | Resident Ryan Cross | Brody | 1 | 1 |
| Emerson Brooks | Navy Lieutenant Carl Greer | Luke Parsons | 1 | 1 |
| Nick Gomez | Nicky Jones | Kropper | 1 | 1 |
| Nikki Crawford | Dr. Shawna Street | Miggy | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.