All 157 actors in both NCIS and Station 19
157 actors have appeared in both NCIS and Station 19, across 613 episodes. The most-credited is Lachlan Buchanan, Navy Petty Officer Second Class James Muldoon in NCIS and Emmett Dixon in Station 19.
| Actor | In NCIS | In Station 19 | Eps | Eps |
|---|---|---|---|---|
| Lachlan Buchanan | Navy Petty Officer Second Class James Muldoon | Emmett Dixon | 1 | 30 |
| Josh Randall | Navy Commander Ryan Barnes | Captain Sean Beckett | 1 | 18 |
| Pat Healy | Chaplain Charles Gage, Jonathan Hanlan | Michael Dixon | 2 | 16 |
| Brett Tucker | Navy Lieutenant Commander Geoffrey Brett | Lucas Ripley | 1 | 16 |
| Sterling Sulieman | NCIS Special Agent Emil Mineoux | Grant | 1 | 9 |
| Leslie Hope | SecNav Sarah Porter | Battalion Chief Frankel | 6 | 3 |
| Emerson Brooks | Navy Lieutenant Carl Greer | Robel Osman | 1 | 7 |
| Elayn J. Taylor | Odette Malone | Marion Hughes | 5 | 2 |
| Jake Borelli | Dean Campbell | Dr. Levi Schmitt | 1 | 6 |
| Scott William Winters | CIA Officer Westley Clark | Schneider | 6 | 1 |
| Jack Conley | Metro Detective Danny Sportelli | Captain Lawrence | 3 | 3 |
| Merle Dandridge | Marcy Carruthers | Fire Chief Natasha Ross | 1 | 9 |
| Brigid Brannagh | Senator Constance Miller, Catherine Reynolds | Moira | 3 | 1 |
| Chelsea Harris | Danielle Benton | Nikki | 1 | 3 |
| Greg Germann | NCIS Deputy Director Jerome Craig | Dr. Thomas Koracick | 3 | 1 |
| Megan Gallagher | Under Secretary of the Navy Jennifer Leo | Deborah | 3 | 1 |
| Barbara Eve Harris | FAA Director Stacy Bergin | Ifeya Miller | 1 | 6 |
| Peter Onorati | Chief of the Boat | Snuffy Souza | 1 | 6 |
| Rigo Sanchez | Boyfriend | Rigo Vasquez | 1 | 9 |
| Jack Axelrod | Shmeil Pinkhas | Mr. Paige | 2 | 1 |
| Linara Washington | Lara Morgan | Mary | 2 | 1 |
| Robert Curtis Brown | Gary Tolin | Paul Montgomery | 1 | 8 |
| Tess Aubert | Piper | Billie | 2 | 1 |
| Alain Uy | Ray Kessel | Captain Pete Aquino | 1 | 7 |
| Cameron Cowperthwaite | Young Marine Corporal Thomas Fletcher | Mason Bishop | 1 | 4 |
| Antonio Jaramillo | Pedro Rodriguez | Tomás Silva | 1 | 3 |
| Brian Letscher | Sam Bennett | Agent Prine | 1 | 1 |
| Ethan Rains | Systems Administrator Kevin Hussein | Jonathan Bright | 3 | 1 |
| James Eckhouse | Fred Cabrisio | Mr. Sorensen | 1 | 1 |
| Lenny Jacobson | Security Guard | Jeff | 1 | 1 |
| Marla Gibbs | Rosie Brown | Edith | 1 | 3 |
| Patricia De León | Gloria Hernandez | Elena Herrera | 1 | 5 |
| Spencer Treat Clark | Ryan Smith | James Beckett, Jr. | 1 | 1 |
| Drew Rausch | Brandon Singer | John Finch | 1 | 4 |
| Rick Worthy | Navy Captain Logan Doyle | Anthony Hughes | 1 | 4 |
| Brad Beyer | Marine Captain Joe Westcott | Cole Edmonds | 2 | 1 |
| Caleb Smith | USNPS ISB Special Agent Gage Winchester | Seth | 1 | 2 |
| Charley Koontz | Max Hoffman | Chef Wolf | 1 | 2 |
| Hilary Ward | Jessica Shaeffer | Ben's Mom | 2 | 1 |
| Lauren Bowles | Mary Wiles, Nance Freeman | Lesley | 2 | 1 |
| Adam J. Harrington | Coast Guard Commander Sam Hendrix | Lane Bishop | 1 | 3 |
| Chris Coy | Riley Davis | Officer Wicklund | 1 | 3 |
| Anthony Hill | Navy Petty Officer Third Class John Blaney "JB" Hicks | Dr. Winston Ndugu, Neil | 1 | 2 |
| Carol Locatell | Renee Prewdome | Evelyn | 1 | 1 |
| Christine Lakin | Rachel Wells | Emmanuelle | 1 | 1 |
| Dan Lauria | Emergency Room Guard Morgan Cade | Walter | 1 | 1 |
| Dinora Walcott | Tour Guide | Pam Williams | 1 | 2 |
| George Wyner | Randall Worthington | Morris Hapgood | 1 | 1 |
| Grant Harvey | Ian Maddux | Joshua | 1 | 1 |
| James Read | Alan Newhall | Jonathan Clifton Tucker | 1 | 1 |
| Jennifer Jalene | Major Diane Vicks | Luisa Berrol | 1 | 3 |
| JoBeth Williams | Leona Phelps | Reggie | 1 | 2 |
| Joe Nieves | Justin Kinneman | Incident Commander Nalley | 1 | 1 |
| Kurt Yaeger | Freddie Linn | Carl Swaminathan | 1 | 1 |
| Larry Poindexter | Dr. Berman | Chief McAllister | 1 | 3 |
| Michael Welch | Kody Meyers | Harold | 1 | 1 |
| Patrick Duffy | Retired Navy Lieutenant Commander Jack Briggs | Terry | 1 | 1 |
| Sam Anderson | Walter Carmichael | Elliot | 1 | 1 |
| Shawn Patrick Clifford | Mike Novaski | Manager Cameron | 1 | 3 |
| Spencer Garrett | Commander Spenser | James Beckett | 1 | 1 |
| Steven Culp | Navy Cmdr. William Skinner | Detective Berarducci | 1 | 1 |
| Tom Wright | Warden Sam Kelleher | Battalion Chief Gregory | 1 | 3 |
| Randy Vasquez | ATF Special Agent Philip Caffey, NCIS Agent Roger Voight | Captain Vinnie | 2 | 1 |
| Angela E. Gibbs | Eden Penzance | Ms. Debbie | 1 | 1 |
| Barry Shabaka Henley | Earl Goddard | Oscar Delgado | 1 | 1 |
| Ben Bode | Dan Reynolds | Bryan | 1 | 1 |
| Chloe Lanier | Emma Carter | Clara | 1 | 1 |
| Dave Florek | Virgil McKeever | Vince Beckett | 1 | 1 |
| Erica Piccininni | Navy Lieutenant Clea Thorson | Tiffany | 1 | 1 |
| Hina Khan | Rachel Lakhani | Sarla | 1 | 1 |
| John Bishop | Army Surplus Store Owner | Hank | 1 | 1 |
| Jonathan Del Arco | Ned Senders | Steve | 1 | 1 |
| Lombardo Boyar | Felix Quintero | Johnny Alvarez | 1 | 3 |
| Michael Grant Terry | Marine Sergeant Theodore "Ted" Lemere | Officer Jones | 1 | 1 |
| Nanrisa Lee | Inspector General Regina Ward | Eleanor | 1 | 1 |
| Patrick Cage | Taye Tanner | Raphael | 1 | 1 |
| Paul Schulze | Marine Major Ken Meyers | Tony | 1 | 1 |
| Robert Gant | Mike Dunke | Matt | 1 | 1 |
| Shane Blades | Tony | Chef Dominic | 1 | 1 |
| Sophina Brown | Navy Reserve Lieutenant Callie Daniels | Joyce | 1 | 1 |
| Tom Costello | Nathan Roberts | Gregory | 1 | 1 |
| Anil Kumar | Dale Pavinski | Dr. Clark Kabir | 1 | 2 |
| Jarvis W. George | Navy Lt. Morgan Tolliver, U.S. Deputy Marshal John Wright | Christopher | 3 | 1 |
| Alex Blue Davis | Vernon Palumbo | Dr. Casey Parker | 1 | 1 |
| Ashlee Füss | Teenaged Girl | Becca | 1 | 1 |
| Dohn Norwood | Fairfax County P.D. Sergeant Sherman T. Harper | Captain Ted Conlin | 1 | 1 |
| Ely Henry | Philip Elertson | Devon | 1 | 1 |
| Emily Chang | Phyllis Moss | Penelope | 1 | 1 |
| Eric Allan Kramer | Phillip Ekkerly | Randall | 1 | 1 |
| Geoffrey Rivas | Ricardo Guzman | Mr. Ortega | 1 | 2 |
| Jenny O'Hara | Alice Brodie | Judith | 1 | 1 |
| Joe Holt | Navy Captain Jack Wallace | Nate | 1 | 1 |
| John Billingsley | Jackson Scott | Lloyd | 1 | 1 |
| Johnny Wactor | Navy Lieutenant Ross Johnson | Lieutenant Cooper | 1 | 1 |
| Jonathan Kells Phillips | Senator Shawn Kelly | Cyclist | 1 | 1 |
| Lou Beatty, Jr. | Issac Curtis | Stu | 1 | 1 |
| Mac Brandt | Jake Spoke | Agent Baxter | 1 | 1 |
| Matthew Downs | Bill Norian | Officer Reaser | 1 | 2 |
| Matthew Jones | Navy Commander Rick Odwalla | Proctor | 1 | 1 |
| Nancy Linehan Charles | Ruthann Harrison | Shirley | 1 | 1 |
| Shari Belafonte | Professor Annabel Davis | Gertrude Rose | 1 | 1 |
| Troy Winbush | Former Marine 1st Lieutenant Sam Keeler | Clark | 1 | 1 |
| Ethan Corn | Physician | Firefighter Jeremy Heffington | 1 | 2 |
| Alyson Reed | Monica Keogh | Virginia | 1 | 1 |
| Amber Friendly | Eden Greyson | Elaine | 1 | 1 |
| Anjali Bhimani | Samantha Petrie | Dr. Mukerji | 1 | 1 |
| Benito Martinez | Detective Conklin | Chief Gonzalez | 1 | 1 |
| Christie Lynn Smith | Cara Barnsway | Aston's Mom | 1 | 1 |
| Danielle Larracuente | Navy Petty Officer Third Class Maria Gonzalez | Liz | 1 | 1 |
| Darri Ingolfsson | Dwight Colton | Matthew | 1 | 1 |
| Drew Powell | Fred Hadley | Fowler | 1 | 1 |
| Erinn Westbrook | Hanna Friedgen | Lacy | 1 | 1 |
| Francis Capra | Eddie Castillo | Neighbor | 1 | 1 |
| Jesse Posey | Navy Lieutenant Jesse Posey Emmanuel Vela | Firefighter James | 1 | 1 |
| John Ales | Miles Hogan | Brother John | 1 | 1 |
| Jorge-Luis Pallo | Lt. Matthew Sanchez | Beto | 1 | 1 |
| June Carryl | Julia Marino | Jack's Therapist | 1 | 1 |
| Kash Abdulmalik | Carter Landegraff | Wayne | 1 | 1 |
| Kenajuan Bentley | Navy Captain Oliver Royce | Tony | 1 | 1 |
| Lanny Joon | Edward Jintao | Justin Park | 1 | 1 |
| Michael B. Silver | Nicholas Sandlock | Parker Lowther | 1 | 1 |
| Michael Dempsey | Coach Morgan | Captain Josh Mesnik | 1 | 1 |
| Monnae Michaell | Navy Commander Leandra Womack | Mrs. Brady | 1 | 1 |
| Peter James Smith | Benjamin Harmey | Vince | 1 | 1 |
| Ramón de Ocampo | Navy Lieutenant Thomas Gorman | Jaime | 1 | 1 |
| Rob Evors | Navy Hull Technician Chief David Harketti | Officer Williams | 1 | 1 |
| Robert Picardo | Retired Marine Gunnery Sergeant Dale Harding | Mr. Nelligan | 1 | 1 |
| Stacie Greenwell | Hartford County Sheriff Marge Fields | Delilah Tillerman | 1 | 1 |
| Zach Tinker | David West | Greg | 1 | 1 |
| Andrew Borba | Doctor Phillip Heller | Officer Smith | 1 | 1 |
| Ann Hu | Heather White | Lisa | 1 | 1 |
| Annie Tedesco | Navy Doctor Lieutenant Liz Cortland | Carla | 1 | 1 |
| Carlos Sanz | Gonzales | Julio | 1 | 1 |
| Cary Christopher | Kaiden Silcott / Al Kaiden | Towheaded Boy | 1 | 1 |
| David Barrera | Charlie Milla | Kenneth | 1 | 1 |
| Kyla-Drew Simmons | Greta Staley | Ellie | 1 | 1 |
| Amari O'Neil | Edgar | Max Forrester | 1 | 1 |
| Brianna Reed | Libby | Davila | 1 | 1 |
| Danny Brown | Sophie | Stella | 1 | 1 |
| George Tsai | Nurse Keith Johnson | Detective Chen | 1 | 1 |
| Gina Gallego | Judge Monica Fernandez | Ruth | 1 | 1 |
| Grace Powell | Joyce | Margot Ford | 1 | 1 |
| Ian Stanley | Robert Whitlock | Officer Anderson | 1 | 1 |
| John Eddins | Steve | Station 23 | 1 | 1 |
| Kimberly Christian | Nina Bradshaw | Natalie Forrester | 1 | 1 |
| Michael Patrick McGill | Joey Kelly | Bob | 1 | 1 |
| Ronald Auguste | Isaac | Gavin | 1 | 1 |
| Tiffany Daniels | Navy Lieutenant Commander Renee Turner | Nancy | 1 | 1 |
| Timothy Davis-Reed | Edison Rawls | Homeowner | 1 | 1 |
| Elaine Lockhart | Doris Collins | Receptionist | 1 | 1 |
| Hermie Castillo | Zeke | Graham | 1 | 1 |
| Jon Curry | Deputy Tyler Barrett | Reese | 1 | 1 |
| Kira Sternbach | Mary Messier | Lucy | 1 | 1 |
| Emanuel Borria | Ricardo | William | 1 | 1 |
| Brett Gipson | Guard Sam | Chuck | 1 | 1 |
| Martin Morales | Bellman | Pablo | 1 | 1 |
| Sylvia Kwan | Gwen Eisley | Dr. Mabel Tseng | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.