Actors in both NYPD Blue and The X-Files
105 actors have appeared in both NYPD Blue and The X-Files, across 479 episodes. The most-credited is James Pickens, Jr., Nathan Foster in NYPD Blue and Deputy Director Alvin Kersh in The X-Files.
| Actor | In NYPD Blue | In The X-Files | Eps | Eps |
|---|---|---|---|---|
| James Pickens, Jr. | Nathan Foster | Deputy Director Alvin Kersh | 1 | 22 |
| Justine Miceli | Det. Adrianne Lesniak | Ariel Luria | 13 | 1 |
| Steven Williams | Lt. Nathan Stackhouse | Mr. X | 1 | 13 |
| James Handy | Borough Commander Haverill | Detective Alan Cross | 7 | 1 |
| Charles Cioffi | Raymond Schelzo | Section Chief Scott Blevins | 1 | 5 |
| Michael B. Silver | A.D.A. Leo Cohen | Howard Grodin | 4 | 2 |
| Peter Boyle | Dan Breen | Clyde Bruckman | 5 | 1 |
| Bradley Whitford | Norman Gardner | Dr. Daniel Trepkos | 4 | 1 |
| Mark Pellegrino | Steve Dansick, Fran Watkins, Stanley Struel | Derwood Spinks | 4 | 1 |
| Titus Welliver | Dr. Mondzac | Doug Spinney | 4 | 1 |
| Conor O'Farrell | Det. Stuart Morrisey | Sheriff Ciolino | 3 | 1 |
| Scott Allan Campbell | IAB Sgt. Jerry Martens | Jeff Smoodge | 6 | 2 |
| Daniel Benzali | James Sinclair, Esq. | Colonel Jacob Wharton | 5 | 1 |
| Don Swayze | Alex | Terry Pruit | 2 | 1 |
| Giovanni Ribisi | Bruce Mackie | Darin Peter Oswald | 2 | 1 |
| Jack McGee | Bob Daniels, Fort Lee Sergeant | Bob Damphouse | 2 | 1 |
| John Finn | Jimmy "Socks" Matloe | Michael Kritschgau | 1 | 5 |
| Nick Chinlund | Weldon Small | Donald Eddie Pfaster | 1 | 2 |
| Susanna Thompson | Joyce Novak | Michelle Generoo | 2 | 1 |
| Willie Garson | Henry Coffield | Henry Weems, Quinton 'Roach' Freely | 1 | 2 |
Cast data from TVmaze, licensed CC BY-SA 4.0.