All 85 actors in both NCIS and NCIS: Hawaiʻi
85 actors have appeared in both NCIS and NCIS: Hawaiʻi, across 562 episodes. The most-credited is Brian Dietzen, Assistant Medical Examiner Dr. Jimmy Palmer in NCIS and Dr. Jimmy Palmer in NCIS: Hawaiʻi.
| Actor | In NCIS | In NCIS: Hawaiʻi | Eps | Eps |
|---|---|---|---|---|
| Brian Dietzen | Assistant Medical Examiner Dr. Jimmy Palmer | Dr. Jimmy Palmer | 65 | 2 |
| Seana Kofoed | CEO Virginia Wilson | Commander Carla Chase | 1 | 29 |
| LL Cool J | Special Agent Sam Hanna | Special Agent Sam Hanna | 6 | 12 |
| Seamus Dever | NCIS Deputy Director Gabriel LaRoche, Graham Thomas | Scott | 7 | 1 |
| Linc Hand | Navy Petty Officer First Class Damien Hunter | Charlie 1 | 1 | 5 |
| Diona Reasonover | Forensic Scientist Kasie Hines | Forensic Scientist Kasie Hines | 3 | 2 |
| Katrina Law | Special Agent Jessica Knight | NCIS Special Agent Jessica Knight | 2 | 2 |
| Don Swayze | Logan Clay, Pete Walker | Joe | 2 | 1 |
| James Morrison | CIA Assistant Director Jonathan Overmeier, U.S. Senator John Phillips | Norman Dell | 2 | 1 |
| Ethan Rains | Systems Administrator Kevin Hussein | Dr. Adrian Dunne | 3 | 2 |
| Louise Barnes | Sarah | Kaya Bredencamp | 4 | 1 |
| Anastasia Baranova | Melissa Canon | Elena | 1 | 1 |
| David Meunier | Wade Cutler | Alexi Volkoff | 1 | 3 |
| Jason Manuel Olazábal | Todd Mercer | Jake Tillman | 1 | 1 |
| Maya Stojan | Meredith Ragen | Morgan Miller | 1 | 1 |
| Rob Benedict | Aaron Alan Wright | Damian Davenport | 1 | 1 |
| Anna Grace Barlow | Karen | Adriana Velazco | 2 | 1 |
| Noah Bean | DOD Chief David Barbado | Arnold Russo | 2 | 1 |
| Scott Lawrence | DEA Agent Raymond Frank, Navy Captain Thomas Lind | Judge Malcolm Keen | 2 | 1 |
| Chris O'Donnell | Special Agent "G" Callen | Special Agent "G" Callen | 3 | 1 |
| April Parker Jones | Elaine Davis | Valerie Dalies | 1 | 1 |
| Bill Dawes | Clayton Wills | T.J. Shaw | 1 | 1 |
| Brianna Brown | Melinda Martin | Talia | 1 | 1 |
| Charley Koontz | Max Hoffman | Siggy Williams | 1 | 1 |
| Chris Payne Gilbert | Wesley Rowan | Dante Reeves | 1 | 1 |
| Jacob Buster | Daniel Simmons | Robbie Morrison | 1 | 1 |
| Kurt Yaeger | Freddie Linn | Master Sergeant Strand | 1 | 1 |
| Titus Makin, Jr. | Navy Ensign Thomas Burke | Lt. Adam Barlow | 1 | 1 |
| Tobias Jelinek | Bodie Whitman | Paolo Castile | 1 | 1 |
| Jay Ali | Omer Malik | Adrian Creel | 1 | 2 |
| Aaron Abrams | Todd Price | Chris Polis | 1 | 1 |
| Alex Quijano | Blye Head of Security Blake Huxley | Alan Mateo | 1 | 1 |
| Catherine Kresge | Marine Lance Corporal Stella Brooks | Allie Acosta | 1 | 1 |
| Chloe Lanier | Emma Carter | Kayla Barlow | 1 | 1 |
| Christopher Redman | Carl Fleming | Clark Lohan | 1 | 1 |
| DaJuan Johnson | NIS Special Agent Edward Scott | Ronnie | 1 | 1 |
| Frederick Koehler | Simon Gravy | Henry West | 1 | 1 |
| Ian Verdun | Francis | Sergeant Owen Santino | 1 | 1 |
| Lanny Joon | Edward Jintao | Lieutenant Adrian Park | 1 | 1 |
| Patrick Cage | Taye Tanner | Mike Williams | 1 | 1 |
| Patrick Fischler | George Stenner | Doug Smith | 1 | 1 |
| Stacie Greenwell | Hartford County Sheriff Marge Fields | Ranger Jo Heath | 1 | 1 |
| Alisa Allapach | Sheila | Melanie Dawes | 1 | 1 |
| Andy Cohen | Doctor Warren Cole | Ryan Barnett | 1 | 1 |
| Anna Khaja | ADA Eliza Hutchins | U.S. Marshal Marcia Adler | 1 | 1 |
| Armando Acevedo | Rene "Renny" Romero | XO Marshall Ramirez | 1 | 1 |
| Bruce Locke | Kai Chen | Oda Sato | 1 | 1 |
| Carlin James | Navy Seaman Felix Pittorino | Kekoa Neal | 1 | 1 |
| Dan Martin | Mail Carrier | Paul Johnson | 1 | 1 |
| Eric Ladin | P.O. Thompson | Ranger Bryson Stone | 1 | 1 |
| Erica Luttrell | Allison Asher | DEA Agent Kendra Vreeland | 1 | 1 |
| James Ferris | Navy Lieutenant Commander Gregory Pullman | Sean Clark | 1 | 1 |
| John Billingsley | Jackson Scott | Professor Woodrow Staggs | 1 | 1 |
| John Marshall Jones | Detective Hanley | George Conrad | 1 | 1 |
| Kate Cobb | Reagan Reilly | Jenny Alika | 1 | 1 |
| Kathy Searle | Rhonda Rosen | Lydia Petrov | 1 | 1 |
| Rich Ceraulo Ko | North Carolina State Trooper Muncie Tyson | Commander Jack Spence | 1 | 1 |
| Stacey Hinnen | Delivery Driver | Bartender | 1 | 1 |
| Jake Allyn | Navy Petty Officer Second Class James Sweeney | New Jesse | 1 | 2 |
| Brandon Fobbs | Coast Guard Petty Officer Third Class Ben Cooper | Master Sergeant Caleb Latham | 1 | 1 |
| Bronson Pinchot | George Burton | Darrin Schwartz | 1 | 1 |
| Chrissie Fit | Mary Evans | Roxanne | 1 | 1 |
| Dylan Bruce | Justin Fanniker | Major Thomas Mullen | 1 | 1 |
| Dylan Kenin | Freddie Fountain | Laird Harriman | 1 | 1 |
| Elise Robertson | Alice Miller | Psychologist | 1 | 1 |
| Erin Ross | Melissa | Millie Chapman | 1 | 1 |
| Michael Broderick | Navy Commander James Shelty | Dr. Andrew Wilson | 1 | 1 |
| Michael Marc Friedman | Gunnery Sgt. Joseph Wilkes | DEA Agent Ned Ross | 1 | 1 |
| Patrick Mulvey | Milo Rankoff | Frank Howell | 1 | 1 |
| Sean Carrigan | Michael Vinton | Lieutenant Colonel Reed | 1 | 1 |
| Teri Wyble | Kendra Allston | Skylar | 1 | 1 |
| Emanuel Borria | Ricardo | Marty Maldado | 1 | 1 |
| Emerson Brooks | Navy Lieutenant Carl Greer | DEA Agent Jerry Covington | 1 | 1 |
| Eugene Prokofiev | Buggy | Walter Pimm | 1 | 1 |
| J.R. Cacia | Metro Police Detective John Carson | Bill Morrison | 1 | 1 |
| Jason Downs | Todd Renfro | Anton Breskov | 1 | 1 |
| Michael Weston | Herman Maxwell | Herman Maxwell | 1 | 1 |
| Presciliana Esparolini | Virginia State Trooper Johnson | Rebecca Hely | 1 | 1 |
| Tom Schanley | Navy Lieutenant Dean Massey | Crazy Sam | 1 | 1 |
| Annie Tedesco | Navy Doctor Lieutenant Liz Cortland | Bartender | 1 | 1 |
| Clark Freeman | Bill Lester | Brent Spooner | 1 | 1 |
| Joseph Lee Anderson | Marine Lance Corporal Bernard "Barney" Ernest Williams | Special Agent Thyme | 1 | 1 |
| Eric Lynch | Gary Shay | Lieutenant Gary Shay | 1 | 1 |
| David Bianchi | Kyle Jennings | Kyle Jennings | 1 | 1 |
| Nathan Ray Clark | NCIS Special Agent Piotter / Priest | Tourist Man | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.