Actors in both NCIS and Will & Grace
100 actors have appeared in both NCIS and Will & Grace, across 754 episodes. The most-credited is Tom Gallop, Victor Sterling in NCIS and Rob in Will & Grace.
| Actor | In NCIS | In Will & Grace | Eps | Eps |
|---|---|---|---|---|
| Tom Gallop | Victor Sterling | Rob | 1 | 17 |
| Jamie Kaler | Christopher Bell | Gary | 1 | 5 |
| Livia Treviño | Lupe | Mrs. Timmer | 1 | 5 |
| Mary Pat Gleason | Nurse Wells | Bridget, Sally | 1 | 4 |
| Taye Diggs | Marine Gunnery Sergeant Aaron Davis | James Hansen | 1 | 4 |
| Jon Cryer | Dr. Cyril Taft | Jon Cryer | 3 | 1 |
| Lily Tomlin | Penelope Langston | Margot | 1 | 2 |
| Ben Reed | Chief P.O. Ian Goetz | Richard Keller | 1 | 1 |
| Erinn Hayes | Wendy Hill | Katherine Fallon | 1 | 1 |
| Gary Grubbs | Coroner Elmo Poke | Harlin Polk | 1 | 1 |
| Ivar Brogger | Simon Katz | Mr. Hutt | 1 | 1 |
| Jackie Geary | NCIS Agent Susan Grady | Cashier | 3 | 1 |
| Mark Harelik | Ron Levinson | Tim | 1 | 3 |
| Pej Vahdat | Nigel Hakim, Balesh Sassnid | Steve | 3 | 1 |
| Phil Morris | Navy Capt. Paul Martino | Dr. Norman | 1 | 1 |
| Raphael Sbarge | Rupert Kritzer | Alex | 1 | 1 |
| Reiley McClendon | Marine Private Brad Sykes | Nixon | 1 | 1 |
| Robert Curtis Brown | Gary Tolin | "Will" actor | 1 | 1 |
| Tony Pasqualini | Man | Man | 1 | 1 |
| Jack McGee | Det. Floyd, Richard "Rick" Jordan | Officer Murphy | 2 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.