Actors in both 30 Rock and Law & Order: Special Victims Unit
229 actors have appeared in both 30 Rock and Law & Order: Special Victims Unit, across 733 episodes. The most-credited is Dean Winters, Dennis Duffy in 30 Rock and Brian Cassidy in Law & Order: Special Victims Unit.
| Actor | In 30 Rock | In Law & Order: Special Victims Unit | Eps | Eps |
|---|---|---|---|---|
| Dean Winters | Dennis Duffy | Brian Cassidy | 15 | 32 |
| Peter Hermann | Gray | Counselor Trevor Langan | 1 | 36 |
| Ned Eisenberg | Marty | Roger Kressler, Jerry Kleinert, Mr. Klein | 1 | 24 |
| Daniel Sunjata | Chris | CSU Tech Burt Trevor, Bomb Squad Officer | 1 | 16 |
| Elizabeth Marvel | Emily | Counselor Rita Calhoun, Dr. Frantz | 1 | 16 |
| Stephanie March | Gretchen Thomas | Alexandra Cabot | 1 | 16 |
| Elizabeth Banks | Avery Jessup | Jaina Jansen | 15 | 1 |
| Marceline Hugot | Kathy Geiss | Leslie Price, School Nun | 12 | 2 |
| John Cullum | Mysterious Man | Barry Moredock | 1 | 11 |
| Kristen Schaal | Hazel Wassername, The Joey Montero Show Dancer | Abby | 11 | 1 |
| Ken Howard | Hank Hooper | Dr. Arlen Rieff | 9 | 1 |
| Will Arnett | Devon Banks | Anthony Damon | 9 | 1 |
| Katrina Bowden | Cerie, Stewardess, The Gruber Brother and Nipsey Dancer | Dana Simpson | 17 | 1 |
| Diane Neal | Erin | Assistant D.A. Casey Novak, Amelia Chase | 1 | 6 |
| Mary Steenburgen | Diana Jessup | Grace Rinato | 5 | 1 |
| Alec Baldwin | Richard Nixon, Chet Huntley, Cubby Gilmore/Larry | Jimmy MacArthur | 4 | 1 |
| Linda Emond | Commericial Voice | Dr. Emily Sopher | 1 | 8 |
| Donna Mitchell | U. Jean Gremby | Judge E. Kearns, Mrs. Lindberg | 1 | 3 |
| Jabari Gray | Executive #5 | CSU Tech Keegan Timmons, Thomas | 1 | 7 |
| Patti LuPone | Sylvia Rossitano | Lydia Lebasi | 3 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.