Actors in both Seinfeld and The Practice
131 actors have appeared in both Seinfeld and The Practice, across 347 episodes. The most-credited is Richard McGonagle, Mr. Star in Seinfeld and Judge Patrick Wilcox in The Practice.
| Actor | In Seinfeld | In The Practice | Eps | Eps |
|---|---|---|---|---|
| Richard McGonagle | Mr. Star | Judge Patrick Wilcox | 1 | 16 |
| James Pickens, Jr. | Det. Hudson | Detective Mike McKrew | 1 | 15 |
| Herb Mitchell | Business Man #1 | Judge Rodney White | 1 | 12 |
| Bruce Davison | Wyck | Scott Wallace | 3 | 9 |
| Anna Gunn | Amy | A.D.A. Jean Ward | 1 | 10 |
| Debra Mooney | Mrs. Sweedler | Judge P. Spindle | 1 | 7 |
| Mik Scriba | Bomb Squad Guy, Cop #1 | Detective Frank Simons | 2 | 6 |
| Reni Santoni | Poppie | Roland Mapp | 4 | 2 |
| Daniel Von Bargen | Kruger | Detective Smiley | 4 | 1 |
| Ernie Sabella | Naked Man | Attorney Harland Bassett | 1 | 4 |
| Stanley Anderson | Judge Arthur Vandelay | Dr. Robert Gale, Dr. Thomas Bellamy | 1 | 3 |
| Ellis E. Williams | Exterminator, Karl | Kevin Beel | 2 | 4 |
| Philip Baker Hall | Lt. Bookman | Judge Joseph Vinocour | 2 | 4 |
| Tim DeKay | Kevin | Jerry Green | 2 | 1 |
| Tony Amendola | Rushdie | Dr. Bernard Gorman, Dr. Alvin Traub, Dr. Emmanuel Willis | 2 | 4 |
| Thom Barry | Manager, Super | Judge B. Watson | 2 | 3 |
| James Hong | Bruce | Min Wong | 1 | 1 |
| James Rebhorn | D.A. Hoyt | Attorney John Rapherson | 2 | 2 |
| Katherine LaNasa | Cathy | Sheila Roe | 1 | 1 |
| Lisa Edelstein | Karen | Diane Ward | 2 | 2 |
Cast data from TVmaze, licensed CC BY-SA 4.0.