All 50 actors in both Seinfeld and The Nanny
50 actors have appeared in both Seinfeld and The Nanny, across 326 episodes. The most-credited is Ann Morgan Guilbert, Evelyn in Seinfeld and Yetta Rosenberg in The Nanny.
| Actor | In Seinfeld | In The Nanny | Eps | Eps |
|---|---|---|---|---|
| Ann Morgan Guilbert | Evelyn | Yetta Rosenberg | 3 | 54 |
| Richard Fancy | Mr. Lippman, Mr. Breckman | Chandler Evans | 10 | 1 |
| Ian Abercrombie | Justin Pitt | Butler Inspector #1 | 7 | 1 |
| Fred Stoller | First Man in Hockey Audience, Fred Yerkes | Fred, the pharmacist | 2 | 4 |
| Lawrence Mandley | Larry, Larry the Cook, Manager | Orderly #1, Juror #6, Policeman | 6 | 5 |
| Brian George | Babu Bhatt | Butler Inspector #2 | 3 | 1 |
| Harry Van Gorkum | Craig | Nigel Sheffield | 1 | 3 |
| Tracy Kolis | Kelly, Marlene | Leslie | 2 | 1 |
| Sue Goodman | Clerk | Bernard's Mother, Henrietta, Lingerie Sales Clerk | 2 | 7 |
| Bette Midler | Bette Midler | Bette Midler | 1 | 1 |
| Corbin Bernsen | Corbin Bernsen | Glen Mitchell | 1 | 1 |
| Ellen Ratner | Ellen | Nadine Cooperman | 1 | 1 |
| Ivana Miličević | Patty | Tasha | 1 | 1 |
| Jay Leno | Jay Leno | Jay Leno | 1 | 1 |
| Nancy Lenehan | Volunteer | Russian Woman | 1 | 1 |
| Richard Portnow | Ray | Phillipe | 1 | 1 |
| Thomas Dekker | Bobby, Son (Porter) | J.B. Bingington's Son | 3 | 1 |
| John Bishop | Ticket Man | Husband, Miss Trans Am Host, Shoe Salesman | 1 | 4 |
| Matt McCoy | Lloyd Braun | Steve Mintz | 2 | 1 |
| Alex Trebek | Alex Trebek | Alex Trebek | 1 | 1 |
| Doug Ballard | Eddie | Dr. Link | 1 | 1 |
| Jonathan Penner | Zach | Danny Imperiali | 1 | 2 |
| Magda Harout | Stella | Sarah, Madam Moleska | 1 | 3 |
| Richard Roat | Dr. Berg | Santa Claus | 1 | 1 |
| Susan Segal | Waitress | Reporter | 2 | 1 |
| Benjamin W. S. Lum | Mailman, Stock Boy | Ken | 2 | 1 |
| Allen Bloomfield | Polar Bear | Uncle Myron | 1 | 1 |
| Anthony Cistaro | Joel | Carlo | 1 | 1 |
| Bryant Gumbel | Bryant Gumbel | Bryant Gumbel | 1 | 1 |
| Dayton Callie | Cabbie | The Sergeant | 1 | 1 |
| Edward Penn | Owen | Richard Porter | 1 | 1 |
| Fritzi Burr | Mah-Jongg Lady | Woman at the Movie | 1 | 1 |
| George Murdock | Testikov | Dakota Williams | 1 | 1 |
| Jessica Tuck | Bonnie | C.C.'s Replacement | 1 | 1 |
| Melanie Good | Tall Woman | Showgirl | 1 | 1 |
| Ralph Manza | Gepetto | Saul | 1 | 1 |
| Ray Stricklyn | Clarence Eldridge | Wendell Kent | 1 | 1 |
| Wayne C. Dvorak | Teacher | Waiter | 1 | 1 |
| Christopher Carroll | Maitre'd | Auditioner #2 | 1 | 1 |
| Lane Davies | MacKenzie | Nigel Waters | 1 | 1 |
| Peggy Blow | Mail Clerk | Nanny #3 | 1 | 1 |
| Sayed Badreya | Foreign Man | Guard | 1 | 1 |
| Tia Riebling | Woman | Mother in the Park | 1 | 1 |
| Tim Bagley | Manager | Flight Attendant | 1 | 1 |
| Tracy Nelson | Janet | Mary Ruth | 1 | 1 |
| Tory Christopher | Comedy Club Waiter, Restaurant Patron | E.R. Doctor | 2 | 1 |
| Dana Gould | Frankie | Josh Bassin | 1 | 1 |
| David Letterman | David Letterman | David Letterman | 1 | 1 |
| Kathryn Joosten | Betsy | Ward Nurse | 1 | 1 |
| Pamela Dillman | Salesperson | C.C.'s Friend #1 | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.