Actors in both Castle and Law & Order: Special Victims Unit
178 actors have appeared in both Castle and Law & Order: Special Victims Unit, across 768 episodes. The most-credited is Arye Gross, Dr. Sidney Perlmutter in Castle and Saul Picard in Law & Order: Special Victims Unit.
| Actor | In Castle | In Law & Order: Special Victims Unit | Eps | Eps |
|---|---|---|---|---|
| Arye Gross | Dr. Sidney Perlmutter | Saul Picard | 17 | 1 |
| Lance Reddick | Keith Kaufman | Dr. Taylor | 1 | 6 |
| Vincent Spano | Christopher Carlucci | FBI Special Agent Dean Porter | 1 | 5 |
| Adam Baldwin | Detective Ethan Slaughter | Captain Steven Harris | 2 | 3 |
| Dylan Walsh | FBI Agent Harris | John Conway, Malcolm Royce | 2 | 3 |
| Jason Beghe | Mike Royce | Sergeant Hank Voight | 2 | 3 |
| Michael Mosley | Jerry Tyson | Ronnie the Informant | 4 | 1 |
| Michael Trucco | Detective Tom Demming | Eric Lutz | 4 | 1 |
| George Newbern | Howard Peterson | Dr. Al Pollack | 1 | 3 |
| Bailey Chase | Will Sorenson | Lincoln Haver | 2 | 1 |
| Dana Delany | Special Agent Jordan Shaw | Carolyn Spencer | 2 | 1 |
| Jacqueline Torres | Nina Mendola | Gloria Guzmán, Nina Carson | 1 | 2 |
| James Brolin | Jackson Hunt | Colonel Richard Finley | 2 | 1 |
| Jordan Belfi | Beau Randolph | Spencer Lewis | 2 | 1 |
| Lola Glaudini | Marilyn Sutton | Lena Hess, Virginia Pell | 1 | 2 |
| Rick Gonzalez | Mickey Carlson | Alfonso Cardenas, Detective Bobby Reyes | 1 | 2 |
| Lee Tergesen | Marcus Gates | Billy Skags, Counselor Erik Garrison | 2 | 3 |
| Brett Cullen | Christian Dahl | Judge Leonard Andrews | 1 | 1 |
| Bruce Davison | D.A. Lou Karnacki | Dr. Graham Mandell | 1 | 1 |
| Ellen Woglom | Rachel Decker | Heather Hallander | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.