All 120 actors in both NCIS and The Resident
120 actors have appeared in both NCIS and The Resident, across 615 episodes. The most-credited is Michael Weston, Herman Maxwell in NCIS and Gordon Page in The Resident.
| Actor | In NCIS | In The Resident | Eps | Eps |
|---|---|---|---|---|
| Michael Weston | Herman Maxwell | Gordon Page | 1 | 10 |
| Glenn Morshower | Cmdr. Robert Peters | Marshall Winthrop | 1 | 16 |
| Kaley Ronayne | Rhonda Collins | Dr. Kincaid "Cade" Sullivan | 1 | 10 |
| Kerr Smith | Navy Lieutenant Jonas Cobb | Jacob Yorn | 2 | 3 |
| Miles Gaston Villanueva | Navy Lieutenant Junior Grade John Alexander | Dr. Alec Shaw | 1 | 8 |
| Don Lake | Navy Captain Phillip Brooks | Jerry Tolman | 3 | 1 |
| Erinn Westbrook | Hanna Friedgen | Adaku Eze | 1 | 7 |
| Damon Dayoub | Adam Eshel | Bobby Singer | 5 | 1 |
| Melina Kanakaredes | Eleni Kostakis | Dr. Lane Hunter | 1 | 2 |
| Raphael Sbarge | Rupert Kritzer | Lieutenant Governor Beaumont | 1 | 2 |
| Steven Culp | Navy Cmdr. William Skinner | Mark Betz | 1 | 5 |
| Tim Russ | Dr. Erik Harper, Jerry Kemper | Tyrone Griffiths | 2 | 1 |
| Ethan Corn | Physician | Paramedic John Akerman | 1 | 13 |
| Gregory Itzin | FBI Director, Spencer Downing | Sunflower | 3 | 1 |
| Lenny Jacobson | Security Guard | Steve Berman | 1 | 1 |
| Maya Stojan | Meredith Ragen | Sofia DeSoto | 1 | 1 |
| Melinda Page Hamilton | Kathy Sheldon, Vanessa Tillman | Emma O'Neil | 2 | 2 |
| Michael O'Neill | Former NCIS Special Agent Riley McCallister | Joshua Williams | 3 | 1 |
| April Parker Jones | Elaine Davis | Dr. Jen Kays | 1 | 2 |
| Christopher B. Duncan | CIA Officer Dale Harris | Brett Slater | 1 | 2 |
| Christopher Cousins | Jordan Jones | Marko | 1 | 2 |
| Sumalee Montano | NCIS Special Agent Nicole Taggart | Trish Tintoc | 2 | 1 |
| Alimi Ballard | NCIS Special Agent Gayne Levin | Al Raines | 3 | 1 |
| Susan Santiago | Camila Charo | Tessa Perez | 3 | 1 |
| Brian George | Dr. Ameen Temani | Tejan Pravesh | 1 | 4 |
| Ashley Jones | Nancy Douglas | Diana Anza | 1 | 1 |
| Charlene Amoia | Denise Mancuso | Bobbi Hendricks | 1 | 1 |
| Cherise Boothe | Marine Officer Washington | Dr. Candace Oliver | 1 | 2 |
| Crystal Rivers | Another Woman on Videoconference | Emily Benesh | 1 | 3 |
| Dan Lauria | Emergency Room Guard Morgan Cade | Simon Ortiz | 1 | 1 |
| George Wyner | Randall Worthington | Dr. Arthur Kravitz | 1 | 1 |
| Jessica Tuck | Gloria Caplinger | Becky Copple | 1 | 1 |
| Jocko Sims | Michael Thomas | Dr. Ben Wilmot | 1 | 2 |
| Kamal Angelo Bolden | Clarence Wyatt | Wade Davies | 1 | 1 |
| Tim Griffin | Marine Sgt. Malcolm Porter | Nate Hill | 1 | 1 |
| Valerie Cruz | Anna | Renata Lopez | 1 | 1 |
| Vernée Watson | Miss Helen Frimkes | Mary Phillips | 1 | 1 |
| Emil Beheshti | FBI Agent Dan Lenroff | Dr. Arthur Franklin | 1 | 4 |
| Christopher Redman | Carl Fleming | Jackson Tellenbaum | 1 | 1 |
| Heather Mazur | Laura Strike-DePalma | Magdalena Axenberg | 1 | 1 |
| John Billingsley | Jackson Scott | Dr. Brian Stewart | 1 | 1 |
| Lamont Thompson | Sommers | Attorney | 1 | 1 |
| Nichelle Hines | NCIS Special Agent Norma Hench | Congresswoman Nichelle Randall | 1 | 3 |
| Rebecca Wisocky | Jody Carvell | Dr. Judith Brown | 1 | 1 |
| Sunkrish Bala | Sameer Aziz | Raja Khoury | 1 | 1 |
| Tori Danner | Blood Donation Nurse | Claire | 1 | 1 |
| Joseph C. Phillips | Phillip Conway | Dr. Jeffrey Pierce | 1 | 2 |
| Karis Campbell | Navy Lt. Elaine Taylor | Dr. Jackie Lin, Jackie Lin | 1 | 2 |
| Paul Schackman | Sullivan Brady | Dr. Todd Eckart | 1 | 2 |
| Rebecca Tilney | Madeline Dumont | Dr. Stacy Leonard | 1 | 2 |
| Alain Uy | Ray Kessel | Albert Soriana | 1 | 2 |
| Anna Khaja | ADA Eliza Hutchins | Himaya Pravesh | 1 | 1 |
| Charlie Bodin | Keith Messier | Spencer Shafer | 1 | 1 |
| Connor Trinneer | James Dempsey | Mark Lawson | 1 | 1 |
| Jenny O'Hara | Alice Brodie | Shirley Harris | 1 | 1 |
| Joe Holt | Navy Captain Jack Wallace | Ernest Levasseur | 1 | 1 |
| Joel Johnstone | Micah Flynn | Gabriel Hendricks | 1 | 1 |
| John Beasley | Daryl Hardy | Mortimer Rosenthal | 1 | 1 |
| Lilli Birdsell | Jill Reynolds | Publicist | 1 | 1 |
| Mandy Levin | Shirley Ives | Wendy Jones | 1 | 1 |
| Matt Battaglia | P.O. Porcaro | Bill Landry | 1 | 2 |
| Matt Malloy | George Pardo | Jake McCrary | 1 | 2 |
| Miguel Pérez | Federal Marshal Van Driver | Doug Johnson | 1 | 1 |
| Nathan Anderson | Luke Walters | Paramedic John | 1 | 1 |
| Nathan Sutton | Barry Goode | Darren | 1 | 1 |
| Regina Ting Chen | MPD Officer Odom | Scrub Nurse | 1 | 1 |
| Vinessa Antoine | Sarah Willis | Lea Davies | 1 | 1 |
| Yaani King Mondschein | Leandra Perkins | Brianna Candelora | 1 | 1 |
| Bernard White | Afghani Ambassador Qasim Saydia | Raj Devi | 1 | 1 |
| Carlos Lacamara | Joe Tabaraz | Andre | 1 | 1 |
| Christian Barillas | Rafael "Rafa" Lopez | Nigel Meahan | 1 | 1 |
| Christie Lynn Smith | Cara Barnsway | Joyce | 1 | 1 |
| Dan Martin | Mail Carrier | Floyd Washington | 1 | 1 |
| Darin Cooper | Roy Evans | Dr. Timothy Buzzkirk | 1 | 1 |
| Gilbert Glenn Brown | Chief Security Officer Carson Granger | Chastain Lawyer | 1 | 1 |
| Jozef Fahey | Jared Turner | Lance | 1 | 1 |
| June Schreiner | Amy Barrett | Diana | 1 | 1 |
| Kate Hodge | Jane Melankovic | Lynette Hughes | 1 | 1 |
| Kenneth Tigar | Diggar Aldridge | Henry Schultz | 1 | 1 |
| Kevin Christy | Clarence Tobett | Roger Stanley | 1 | 1 |
| Marnee Carpenter | Alma Bolston | Janey Moore | 1 | 1 |
| Michelle Krusiec | Maya | Grace Soriana | 1 | 1 |
| Peter Graham | Christopher Crane | Jerome Parker | 1 | 1 |
| Philip Anthony-Rodriguez | Former Marine LCPL Lloyd Jackson | Miguel Espinoza | 1 | 1 |
| Ramón de Ocampo | Navy Lieutenant Thomas Gorman | Sam | 1 | 1 |
| Robert Clendenin | Pharmacist | William Harper | 1 | 1 |
| Teri Wyble | Kendra Allston | Sadie | 1 | 1 |
| Tijuana Ricks | CIA Agent Pamela Walsh | Clementine Jolson | 1 | 1 |
| Victor McCay | Ash | Ben Mullins | 1 | 2 |
| Alex Solowitz | Dave | Zeke Metcalfe | 1 | 1 |
| Andy Milder | Gene Isaacson | Dr. Stefan Kisic | 1 | 1 |
| Anjali Bhimani | Samantha Petrie | Dr. Irena Simmons | 1 | 1 |
| Briana Venskus-Vazquez | Joanna | Astrid Chavez | 1 | 1 |
| Cooper Thornton | Navy Captain Peter Vandevere | Ollie | 1 | 1 |
| Drew Waters | Spencer Hanlon | Bryce Foley | 1 | 1 |
| Julia Cho | Ginger Uwanawich | Brit Bennett | 1 | 1 |
| Karole Foreman | Lydia Miles | Adelaide Loggins | 1 | 1 |
| Kim Matula | Agent Rose | Scarlett Wexler | 1 | 1 |
| Landon Ashworth | Glen Collins | Donald Killian | 1 | 2 |
| Linda Park | JAG Officer Lieutenant Nora Patel | Janine Levasseur | 1 | 1 |
| Missy Yager | Michelle Davison | Susan Lawson | 1 | 1 |
| Rich Hutchman | Deputy Andrews | Cricket | 1 | 1 |
| Cayden Boyd | Marine First Lieutenant Danny Hall | Tyler Warzel | 1 | 1 |
| Jamie Gray Hyder | Navy Petty Officer First Class Heidi Orr | Grace Brooks | 1 | 1 |
| Jesse Luken | Corpsman | Marcus Thompson | 1 | 1 |
| Juan Carlos Cantu | Leo Silva | Gabe Sandoval | 1 | 1 |
| Shannon Wilcox | Mrs. Roach | Donna Jackson | 1 | 1 |
| Cliff Weissman | Nicolas Everett | Boone | 1 | 1 |
| Gill Gayle | Waylon | Electric Ed | 1 | 1 |
| Hugh Holub | Superintendant | Horace Dudley | 1 | 1 |
| Karly Rothenberg | Female Passerby | Marilyn Spoelstra | 1 | 1 |
| Pamela Dunlap | Mom | Lillian Cortland | 1 | 1 |
| Roberto Sanchez | Jose | Enrique Mendez | 1 | 1 |
| Adrian Sparks | Hugo Radcliffe | Dr. Leonard Perry | 1 | 1 |
| Jeff Campanella | Store Clerk | Male Executive | 1 | 1 |
| Jennifer Gatti | Negotiator Arkin | Nurse Nancy | 1 | 1 |
| Jonathan Runyon | Marine PFC Oscar Cunningham | Tim Labelle | 1 | 1 |
| Wes McGee | Navy Petty Officer First Class Andrew Wells | Scott | 1 | 1 |
| Cuyle Carvin | Navy Lieutenant Commander Oliver Happ | Surgeon Josh Rudnick | 1 | 1 |
| Kim Estes | Minister | Roland Rawlins | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.