Actors in both House and NCIS
291 actors have appeared in both House and NCIS, across 684 episodes. The most-credited is Margo Harshman, Melissa in House and Delilah Fielding in NCIS.
| Actor | In House | In NCIS | Eps | Eps |
|---|---|---|---|---|
| Margo Harshman | Melissa | Delilah Fielding | 1 | 21 |
| Jennifer Crystal Foley | Rachel Taub | CIA Agent Constance Mazney | 18 | 1 |
| Stephanie Venditto | Nurse Brenda | Dr. Jane Leisten | 11 | 1 |
| Michael Weston | Lucas Douglas | Herman Maxwell | 10 | 1 |
| Jamie Bamber | Bob Harris | NSA Attorney Jake Malloy | 1 | 6 |
| Leslie Hope | Victoria Madsen | SecNav Sarah Porter | 1 | 6 |
| LL Cool J | Clarence | Special Agent Sam Hanna | 1 | 6 |
| Rena Sofer | Marlene Reese | Margaret Allison Hart | 1 | 6 |
| Meredith Eaton | Maddy | Carol Wilson | 1 | 5 |
| Michael Nouri | Thad Barton | Mossad Director Eli David | 1 | 5 |
| Nigel Gibbs | Sanford Wells | Admiral Theodore Tully | 4 | 1 |
| Jack Conley | Sheriff Costello | Metro Detective Danny Sportelli | 1 | 3 |
| Salli Richardson-Whitfield | Sharon | Carrie Clark | 1 | 3 |
| Sasha Alexander | Nora | Special Agent Caitlin "Kate" Todd | 1 | 3 |
| Liz Benoit | Nurse Anne, Nurse #2, Surgical Nurse | Scholarly Woman #2 | 12 | 1 |
| Rif Hutton | Morris | Marine General Phillip Braxton | 1 | 2 |
| Robert Pine | Drew's Grandfather | Congressman Theodore Randolph, Golfer Ben | 1 | 2 |
| Scott Michael Campbell | Joe | Robert Miller | 2 | 1 |
| Vernée Watson | Nurse Smits | Miss Helen Frimkes | 2 | 1 |
| Wendy Makkena | Dr. Julie Whitner | Dr. Rachel Cranston | 1 | 4 |
Cast data from TVmaze, licensed CC BY-SA 4.0.