All 128 actors in both NCIS and The Fosters
128 actors have appeared in both NCIS and The Fosters, across 612 episodes. The most-credited is Amanda Leighton, Amanda Adams in NCIS and Emma Kurtzman in The Fosters.
| Actor | In NCIS | In The Fosters | Eps | Eps |
|---|---|---|---|---|
| Amanda Leighton | Amanda Adams | Emma Kurtzman | 1 | 53 |
| Alexandra Barreto | Navy Petty Officer Rena Oliver | Ana Gutierrez | 1 | 38 |
| Tom Williamson | Navy Ensign Stoddard | AJ Hensdale | 1 | 35 |
| Kerr Smith | Navy Lieutenant Jonas Cobb | Robert Quinn | 2 | 19 |
| Jay Ali | Omer Malik | Mr Timothy | 1 | 18 |
| Connie Jackson | Elaine | Teacher | 11 | 1 |
| Brandon Quinn | Gregg Abell | Gabriel Duncroft | 1 | 20 |
| Kelli Williams | NCIS Special Agent Maureen Cabot | Justina Marks | 2 | 6 |
| Sam McMurray | Harold Lamb, John Westfal | Frank Cooper | 2 | 5 |
| Elayn J. Taylor | Odette Malone | Judge | 5 | 1 |
| Madisen Beaty | Kristen Haskell | Talya Banks | 1 | 15 |
| Lorraine Toussaint | Deputy Director Donna Wolfson | Dana Adams | 1 | 9 |
| Kalama Epstein | Ryan Harper | Noah Walker | 1 | 18 |
| Caitlin Carver | Megan Porter | Hayley Heinz | 1 | 13 |
| April Parker Jones | Elaine Davis | Captain Roberts | 1 | 8 |
| Anna Grace Barlow | Karen | Zoey | 2 | 6 |
| Jamie McShane | Samuel Hayes | Donald Jacob | 1 | 7 |
| Tim Russ | Dr. Erik Harper, Jerry Kemper | Judge James Eskin | 2 | 2 |
| Kristen Ariza | CIA Operations Officer Loretta Tennison | Tess Bayfield | 1 | 9 |
| Judy Kain | Gladys Stone | Lauren | 1 | 8 |
| Reiley McClendon | Marine Private Brad Sykes | Vico Cerar | 1 | 8 |
| Fareed Ward | JSOC Navy Lieutenant Eric Kagen | Drew Turner | 1 | 10 |
| Samantha Logan | Riley Davis | Tia Stephens | 1 | 7 |
| Joseph Julian Soria | Victor "Popeye" Carmado | Russell Ortega | 1 | 4 |
| Angela E. Gibbs | Eden Penzance | Michelle Walters | 1 | 5 |
| Brynn Thayer | Adams County Sheriff's Department Sheriff Mary Talbot | Sheila Snow | 1 | 3 |
| Charles Carpenter | Sheriff Marcus Mayes | Officer Fullerton | 1 | 1 |
| Chris Bruno | Navy Captain James "Sandman" Powell | Adam Stevens | 1 | 9 |
| Hilary Ward | Jessica Shaeffer | Mrs Benton | 2 | 2 |
| Reggie Austin | Navy Lieutenant Carlton Mane, Peter Braden | Dean Bayfield | 2 | 7 |
| Asante Jones | Homicide Detective Andy Kochofis | Delivery Man | 2 | 1 |
| Bruce Davison | Lester Burm | Stewart Adams | 1 | 5 |
| Fran Bennett | Mary Elaine Smith | Iris | 2 | 2 |
| Mercedes Colon | Gina | Margo Velasquez | 1 | 7 |
| Robert Gant | Mike Dunke | Jim Hunter | 1 | 3 |
| Travis Schuldt | Freddy Martin, Paul Miller | Nate Adams | 2 | 2 |
| Chad Todhunter | Pete Lewis | Patrick Molloy | 1 | 4 |
| Yvette Monreal | Maya Guzman | Adriana Gutierrez | 1 | 4 |
| Alberto De Diego | Marine First Lieutenant Ethan Wynn | Rafael | 1 | 6 |
| Cameron Gellman | Daniel Holloway | Max | 1 | 1 |
| Dana L. Wilson | Doctor Erica Bell | Wendy | 1 | 1 |
| Hugh Scott | Police Deputy Billy McCormick | Doug Harvey | 1 | 5 |
| Mary Mouser | Kelly Gibbs | Sarah | 4 | 3 |
| Michael Patrick McGill | Joey Kelly | Coach Spears | 1 | 6 |
| Susan Walters | Marcy Brooks | Diane Hunter | 1 | 3 |
| Debra Christofferson | Rita Gregg, Uta | Therapist | 2 | 2 |
| Isiah Adams | Shift Manager Chad Hamilton | Teen Boy | 2 | 1 |
| John Marshall Jones | Detective Hanley | Detective Bruckner | 1 | 2 |
| David L. King | Zullow Senior Vice President Lance Rama | Chip Jackson \ Quinn's Attorney | 1 | 4 |
| Myles Grier | Startled Man | Garner | 1 | 4 |
| Chet Grissom | Rupert Kittridge | Assistant DA | 1 | 1 |
| David Sullivan | NCIS Special Agent Larry Krone | David Fressola | 1 | 1 |
| Link Ruiz | Hugo Grava | Guard Stinton | 1 | 1 |
| Livia Treviño | Lupe | Court Reporter | 1 | 1 |
| Miles Gaston Villanueva | Navy Lieutenant Junior Grade John Alexander | Physical Therapist | 1 | 1 |
| Patrick Duffy | Retired Navy Lieutenant Commander Jack Briggs | Robert Quinn Sr. | 1 | 1 |
| Sergio Enrique | Marine | Bartender | 1 | 1 |
| Thomas Crawford | Doctor Walter Magnus | Judge | 1 | 1 |
| Wayne Lopez | Prison Sergeant Desmond Walters | Wade | 1 | 1 |
| Daniel Hagen | Calvin Hopper | Meyers / School Board Member | 1 | 2 |
| John Rubinstein | Bob | Henry Marshall | 1 | 2 |
| Karis Campbell | Navy Lt. Elaine Taylor | Karen | 1 | 2 |
| Stephanie Erb | Rachel Nasry | Dr. Vivian Hillcroft | 1 | 2 |
| Toks Olagundoye | Rebeka Hooper | Faith | 1 | 2 |
| Ashlee Füss | Teenaged Girl | April | 1 | 3 |
| Carlos Sanz | Gonzales | Ernesto Rivera | 1 | 3 |
| Eric Steinberg | Marcos Siazon | Professor Kim | 1 | 3 |
| Barry Livingston | Bartholomew Lemming | Kyle | 1 | 2 |
| Jenny O'Hara | Alice Brodie | Melanie's Mom | 1 | 1 |
| Joel Johnstone | Micah Flynn | Scott Frey | 1 | 1 |
| Lyn Alicia Henderson | ER Nurse | Social Worker / Lisa | 1 | 2 |
| Matthew Jones | Navy Commander Rick Odwalla | Officer Ruiz | 1 | 1 |
| Shi Ne Nielson | FBI Special Agent Daisy Milner | Kate O'Brien | 1 | 2 |
| Terryn Westbrook | County Deputy Regina Unger | Tracy Carver | 1 | 1 |
| Roxana Brusso | Noemi Cruz | Detective Fernandez | 1 | 3 |
| Jarrod Crawford | Marine M.P. Sgt. Brooks | Halfway House Counselor | 1 | 2 |
| Hugo Garcia | Ernie | Juan Sinfuego | 1 | 4 |
| Amber Friendly | Eden Greyson | Nurse | 1 | 1 |
| Christopher Goodman | NCIS Special Agent Michael West | Tom | 1 | 1 |
| Geoffrey Rivas | Ricardo Guzman | Bill | 1 | 1 |
| Heather Grace Hancock | Drunk Woman | Young Woman | 1 | 1 |
| J.R. Cacia | Metro Police Detective John Carson | Dan Cruz | 1 | 3 |
| Jeremy Glazer | Douglas Pritchard | Jeff Stolland | 1 | 1 |
| John Ales | Miles Hogan | Coach | 1 | 1 |
| Nancy Youngblut | Joanna "Mama Jo" Dalton | Judge | 1 | 1 |
| Paul Schackman | Sullivan Brady | Laser Specialist | 1 | 1 |
| Robert Neary | Travis Cook | Detective Maslow | 1 | 3 |
| Stacy Edwards | Commander Janice Byers | Mrs. Baker | 1 | 1 |
| Cara Pifko | Kelsey Donner | Natalie | 1 | 2 |
| Marcella Lentz-Pope | Amy Bright | Chloe Hendricks | 1 | 2 |
| Warren Sweeney | Priest | Seller #2 | 1 | 2 |
| Adam William Zastrow | Ronald Kepczak | Delivery Guy | 1 | 1 |
| Anjali Bhimani | Samantha Petrie | Dr. Melvoy | 1 | 1 |
| Anna Khaja | ADA Eliza Hutchins | Joan | 1 | 1 |
| Ivar Brogger | Simon Katz | Doctor | 1 | 1 |
| John Prosky | Carl Dalton | Doctor | 1 | 2 |
| Joi Liaye | Nina Miller | Olivia | 1 | 2 |
| Scott Alan Smith | Det. Mauceri | Surgeon | 1 | 1 |
| Scott Lowell | Terry Thomas | Doctor | 1 | 1 |
| Shaw Jones | Navy Commander George Campbell | EMT #1 | 1 | 1 |
| Alex Quijano | Blye Head of Security Blake Huxley | Tony Delgado | 1 | 2 |
| S. Zylan Brooks | Catherine Scott | Monica Davis | 1 | 2 |
| BJ Mitchell | Malcolm White | Angry Partier | 1 | 1 |
| Christopher Allen | Overdose Victim | Officer 1 | 1 | 1 |
| David Rees Snell | Morgan Hunt | Mr. Baker | 1 | 1 |
| Emanuel Borria | Ricardo | DJ | 1 | 1 |
| Karl T. Wright | John Hicks | Attending Doctor | 1 | 1 |
| Matt Jayson | Edgar Stump | EMT | 1 | 1 |
| Michael Dempsey | Coach Morgan | Davis | 1 | 1 |
| Samantha Sloyan | Emily Goodwin | ER Doctor | 1 | 1 |
| Anzu Lawson | Sonia Bell | Nia / Lawyer | 1 | 1 |
| Brandon Black | Martin Polk | Hiker | 1 | 1 |
| Grace Rowe | NCIS Special Agent Donna Andrews | Female Guard | 1 | 1 |
| Hugh Holub | Superintendant | Inspector | 1 | 1 |
| Jeff Williams | Doctor | Mr. Keating | 1 | 1 |
| Jeffrey G. Barnett | David | Ken | 1 | 1 |
| Matt Knudsen | Jensen Reed | Taylor's Dad | 1 | 1 |
| Necar Zadegan | Marine Lt. Rihama Shaheen | Gretchen | 1 | 1 |
| William Charlton | Metro P.D. Jeff Katz | Contractor | 1 | 1 |
| Alain Uy | Ray Kessel | ADA | 1 | 1 |
| Darryl Alan Reed | Cabbie | Apartment Manager | 1 | 1 |
| Matt Kaminsky | Henry Spivey | Brad | 1 | 1 |
| Jack Guzman | Wade | Valet | 1 | 1 |
| Julie Wittner | Female Inmate | Jeannie | 1 | 1 |
| Matt Orduna | Shelter Manager | Hank Benton | 1 | 1 |
| Pablo Espinosa | Arena Security Guard | Officer Juarez | 1 | 1 |
| Kim Estes | Minister | Judge Alton | 1 | 1 |
| James Coholan | High School Kid #2 | Jack | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.