All 85 actors in both Mom and NCIS: Los Angeles
85 actors have appeared in both Mom and NCIS: Los Angeles, across 493 episodes. The most-credited is Lyn Alicia Henderson, Susan in Mom and Gail Walker in NCIS: Los Angeles.
| Actor | In Mom | In NCIS: Los Angeles | Eps | Eps |
|---|---|---|---|---|
| Lyn Alicia Henderson | Susan | Gail Walker | 8 | 1 |
| Mary Pat Gleason | Mary | Landlady | 8 | 1 |
| David James Elliott | Joe | Captain Harmon "Harm" Rabb Jr., USN | 1 | 3 |
| Steve Valentine | Rod Connaughton | Frankie Bolton | 3 | 1 |
| Eric Allan Kramer | Earl | Homeland Security Special Agent Tom Panetti | 1 | 2 |
| Mark Bloom | Armand | Victor | 1 | 2 |
| Mark Saul | Cooper | Ethan | 2 | 1 |
| Lamont Thompson | Marcus | Spencer Williams | 1 | 4 |
| Chris L. McKenna | Derek | CIA Agent | 1 | 1 |
| Krishna Smitha | Cindy | Natasha Graham | 1 | 1 |
| Lauren Bowles | Mary | Gaia | 1 | 1 |
| Peter Porte | Dr. Huss | Joseph | 1 | 1 |
| Spencer Daniels | Luke | Navy Petty Officer 2nd Class Vincent Davis | 1 | 1 |
| Stephen Monroe Taylor | Darryl | Oscar Willits | 1 | 1 |
| Victor Webster | Dr. Harris | Stanley King | 1 | 1 |
| Christine Horn | Officer Carter | Elliot Reynolds | 1 | 2 |
| Natasha Hall | Shawn | Heather | 2 | 1 |
| Rebecca Metz | Bobbi | Lady | 2 | 1 |
| Rizwan Manji | Dr. Bellin | Anton Zevlos | 2 | 1 |
| David Meunier | Yuri | Barris Stone | 3 | 1 |
| Carlease Burke | Nurse Patricia | Car Rental Shop Owner | 1 | 1 |
| David de Lautour | Greg | Roy Kessler | 1 | 1 |
| Deidrie Henry | Andrea | Rachel DeMayo | 1 | 1 |
| Gary Kraus | Ted | Dean | 1 | 1 |
| Jim Holmes | Wayne | Lance Witten | 1 | 1 |
| Jim Pirri | Italian Language Instructor | Donald Banks | 1 | 1 |
| Keone Young | George | Dae Ho | 1 | 1 |
| Lilli Birdsell | Lydia | Carol Rutnam | 1 | 1 |
| Rob Brownstein | Dr. Mekizian | Neurologist | 1 | 1 |
| Stephanie Erb | Louise | Tranquility Villa Staff Member Psychologist Vicky Weber | 1 | 1 |
| Wylie Small | Woman | Estelle Mills | 1 | 1 |
| Bianca Lopez | Alice | EMT | 1 | 2 |
| Rob Nagle | M.C. | Albert Barrington | 1 | 2 |
| Alimi Ballard | Professor Gannon | AUSA Allan Williams | 1 | 1 |
| Amir M. Korangy | Leo | Yusef Khan | 1 | 1 |
| Amy Farrington | June | Genevive Parks | 1 | 1 |
| Brandon Morales | Tony | Guard | 1 | 1 |
| Brett Wagner | Frankie | Buford | 1 | 1 |
| Carolyn Hennesy | Professor Winslow | Bunny | 1 | 1 |
| Danielle Bisutti | Dana | Sarah Taylor | 1 | 1 |
| Danny Brown | Cassie | Navy Air Intercept Controller Heather Greene | 1 | 1 |
| David Barrera | Gary | Captain Vargas | 1 | 1 |
| David Figlioli | Andre | Rondel Fryer | 1 | 1 |
| Dawan Owens | Dave | Kip Brigham | 1 | 1 |
| Ian Reed Kesler | Lee | Jeremy Pernell | 1 | 1 |
| Jennifer Chang | Nurse | Staffer | 1 | 1 |
| Jim Hanna | George | Motel Owner | 1 | 1 |
| Johnny Kostrey | Immigration Officer #4 | Comescu Lieutenant | 1 | 1 |
| Makai Dudeck | Kid #1 | Jake Reynolds | 1 | 3 |
| Marcuis Harris | Clayton | Little Keen | 1 | 1 |
| Mary-Pat Green | Susie | Carla | 1 | 1 |
| Mila Brener | Young Bonnie | Girl | 1 | 1 |
| Pam Trotter | Barb | Loretta Dawson | 1 | 1 |
| Tiffany Dupont | Alicia | ZNN Reporter Dana Steele | 1 | 1 |
| Tommy Brown | Drive-Thru Employee | Jason Reed | 1 | 1 |
| Anzu Lawson | Luanne | Nurse | 1 | 2 |
| Andrew Pifko | Man | Maitre d' / Steffen | 1 | 1 |
| Asante Jones | Corey | 1st Lt Winters | 1 | 1 |
| Christopher Goodman | Waiter | Navy Captain Dean Hadlow | 1 | 1 |
| Daniel Steven Gonzalez | Swat Officer | Paramedic #4 | 1 | 1 |
| David Chan | Waiter | Nurse Steven Hong | 1 | 1 |
| E.J. Callahan | Maintenance Man | Old Man | 1 | 1 |
| Miriam Flynn | Arlene | Marilyn Parsons | 1 | 1 |
| Nicola Lambo | Customer | Lead ATF Agent | 1 | 1 |
| Robert Curtis Brown | Edward | Air Force OSI Executive Director David Cole | 1 | 1 |
| Rolando Boyce | Officer Hayes | Foreman | 1 | 1 |
| Samantha Cutaran | Receptionist | Flight Attendant | 1 | 1 |
| Winston Story | Dane | Eddie Fisk | 1 | 1 |
| Andrew Tinpo Lee | Dan | Ramon Santos/Amir Mattar | 1 | 1 |
| Johnathan McClain | Mark | Ryan Wallace | 1 | 1 |
| Juan Alfonso | Officer Barry | Carlos | 1 | 1 |
| K.T. Thangavelu | Barbara | Cleaning Lady | 1 | 1 |
| Kiff VandenHeuvel | Zeke | Carl | 1 | 1 |
| Melody Butiu | Lorena | Evie | 1 | 1 |
| Meredith Giangrande | Andrea | Young Tan Woman | 1 | 1 |
| Regi Davis | Manager | Assistant Diplomat Ekedo | 1 | 1 |
| Ron Roggé | Fireman #3 | Bartender | 1 | 1 |
| Shawn Parikh | Craig | Vamsi Patel | 1 | 1 |
| Terryn Westbrook | Saleswoman | Rebecca | 1 | 1 |
| Tom Virtue | Martin | Dr. Hodge | 1 | 1 |
| Bob Glouberman | Mr. Davenport | Doctor Lance Tannen | 1 | 1 |
| S. Zylan Brooks | Donna | Bank Manager | 1 | 1 |
| Zachary Stockdale | Douglas | Marine Private First Class Liam Walker | 1 | 1 |
| Grace Rowe | Joan | Doctor Michelle Maxwell | 1 | 1 |
| Anthony Ma | Ben | Young Worker | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.