All 238 actors in both ER and NYPD Blue
238 actors have appeared in both ER and NYPD Blue, across 592 episodes. The most-credited is Leland Orser, Dr. Lucien Dubenko in ER and Les Treet, Zeppo Marchansky in NYPD Blue.
| Actor | In ER | In NYPD Blue | Eps | Eps |
|---|---|---|---|---|
| Leland Orser | Dr. Lucien Dubenko | Les Treet, Zeppo Marchansky | 61 | 2 |
| Michael Beach | Al Boulet | Officer Frank Quint | 19 | 2 |
| Michael B. Silver | Dr. Paul Myers | A.D.A. Leo Cohen | 12 | 4 |
| Michael J. Harney | Mr. Stehly | Mike Roberts | 1 | 8 |
| Cress Williams | Officer Reggie Moore | Silky | 14 | 2 |
| David Harris | Fulton's Son | Officer Donny Simmons | 1 | 7 |
| Gina Ravera | Dr. Bettina DeJesus | Shawanda Wilson | 13 | 1 |
| Robert Costanzo | Pernicious Anemia Man | Alfonse Giardella | 1 | 6 |
| Lourdes Benedicto | Rena Trujillo | Gina Colon | 5 | 1 |
| Conor O'Farrell | Richard Abbott | Det. Stuart Morrisey | 2 | 3 |
| David Schwimmer | Dr. Karubian | Josh '4B' Goldstein | 1 | 4 |
| Justina Machado | Officer Claudia Diaz, Ms. Cruz | Elsa | 9 | 1 |
| Mark Pellegrino | Nathan Conley | Steve Dansick, Fran Watkins, Stanley Struel | 1 | 4 |
| James Handy | Dan Sullivan | Borough Commander Haverill | 1 | 7 |
| Mel Winkler | Charles Sanberry | Artie Mantell, Inspector Hampton, Lonnie Parker | 1 | 3 |
| Tom Towles | Teenage Boy's Father | Inspector Anthony Lastarza | 1 | 6 |
| Aldis Hodge | Brad Enloe, Young Man | Eddy | 2 | 1 |
| George Wyner | Rabbi | Teacher | 2 | 1 |
| Luck Hari | Lakshmi, OB Nurse | Dr. Chepuri | 2 | 1 |
| Richard Herd | Dr. Murphy | Jimmy McGowan | 1 | 2 |
| Dan Hedaya | Herb Spivak | Lou the Werewolf | 4 | 1 |
| Aaron Paul | Doug | Marcus Denton | 1 | 1 |
| Bruce Nozick | Craig Simon | Det. Jimmy Abruzzo | 2 | 2 |
| Christian Clemenson | Dr. Kurtag | Timothy Bosham | 1 | 1 |
| Mary Pat Gleason | Anne Parks | Mary Mosler | 1 | 1 |
| Rosemary Forsyth | Judy | Felicia Heilbrenner | 1 | 1 |
| Sterling K. Brown | Bob Harris | Kelvin George | 1 | 1 |
| Brent Jennings | Nat | Ephraim Daniels, Pierre LaFont | 3 | 2 |
| Larry Joshua | Lomas | Capt. Clifford Bass | 1 | 4 |
| Barry Shabaka Henley | Detective | Archie Day, Roger Billings | 1 | 2 |
| Bradley Whitford | Sean O'Brien | Norman Gardner | 2 | 4 |
| Ramy Zada | Vincent Greco | Harold Rutansky | 1 | 2 |
| Tzi Ma | Mr. Yeung | Det. Harold Ng | 1 | 2 |
| Mary Mara | Loretta Sweet | Theresa Carlin | 9 | 1 |
| Elizabeth Rodriguez | Nurse Sandra | Amalia Lopez | 3 | 1 |
| Adam Scott | David Kerstetter | Gordon Puterbaugh | 1 | 1 |
| Bill Macy | Richard Gould | Moe Neiberg | 1 | 1 |
| Camille Saviola | Margaret | Evelyn Sekzer | 1 | 1 |
| Dan Lauria | Rick Simpson | George Garabedian | 1 | 1 |
| Patrick Fischler | Chamber Tech | Ken Thornton | 1 | 1 |
| Richard Minchenberg | Dr. P.K. Simon | Stuart Salzman | 5 | 1 |
| Saxon Trainor | Karen Simms | Officer Anne McGuire | 1 | 2 |
| Shannon Cochran | Mrs. Klingman | Lois Snyder | 1 | 4 |
| Tim De Zarn | Mr. Krawczyk | George Putnam | 2 | 3 |
| Wade Williams | Migraine Guy | Arnold Struel | 1 | 1 |
| Julie Ariola | Emily | Elizabeth Silber, Marion Forbes | 4 | 2 |
| George Cheung | Mr. Chen, Mr. Fong | Stephen Cheng | 4 | 1 |
| Dean Norris | Bomb Specialist Clark | Father Jerry Downey | 1 | 3 |
| Richard Gant | Mr. Lipson | 8th Precinct Desk Sergeant Sudram, Desk Sergeant, Leroy Glover | 1 | 3 |
| Gerry Black | Mr. Fletcher | Lucas, Mario Walker | 3 | 2 |
| Amanda Wyss | Mrs. Adams | Ellen Lewis | 1 | 1 |
| Bill Marcus | Mr. Biggers | Rudolph Haysbert | 1 | 1 |
| Hill Harper | Mr. Jackson | Bo-Bo Thomas | 1 | 1 |
| Karen Austin | Mrs. Carlson | Jessica Herman | 1 | 1 |
| Mark Rolston | Officer Thomas | Leon Broadus | 1 | 1 |
| Michael Reilly Burke | Dick White | Harry Benson | 1 | 1 |
| Danny Goldring | Tony Logan | Sgt. McNamara | 1 | 2 |
| George Gerdes | Jim Riley | Louis Foreman | 2 | 1 |
| Jack Kehler | Jail Officer | Howard Coleman, Jimmy Step-and-a-Half | 1 | 2 |
| Louis Giambalvo | Security Guard David Hilliker | Dominic Bucci | 1 | 2 |
| Adam Goldberg | Joshua Shem | Dave Bloom | 1 | 1 |
| Barry Gordon | Baxter | Philip Fox, Esq. | 1 | 1 |
| Bill Cobbs | Mr. Bowman | Norval Stevens | 1 | 1 |
| Christine Avila | Corazon | Lanie, Mrs. Herrera | 1 | 2 |
| David Purdham | Dr. Kallis | Dr. Barkley | 1 | 1 |
| Glenn Morshower | Rick Decoyte | Special Agent Wilson | 1 | 1 |
| Jack McGee | Rodney McMullen | Bob Daniels, Fort Lee Sergeant | 1 | 2 |
| Jessica Tuck | Dr. Hemmings | Farrell McLeary | 1 | 1 |
| Mackenzie Phillips | Leslie Miller | Mary Donaldson | 1 | 1 |
| Michael Bowen | Dante Valerio | David Tierney | 1 | 1 |
| Shirley Knight | Mrs. Burke | Agnes Cantwell | 1 | 1 |
| Tom Wright | Wharton | Kwasi Olushola | 2 | 1 |
| William Lucking | Kenny Brannigan | Chief Sam Burns | 1 | 1 |
| Andi Chapman | Joanie Albright | Chandra | 2 | 1 |
| Anna Gunn | Ikabo's Lawyer | Kimmy | 1 | 2 |
| Brad Grunberg | Masked Man | Leon | 1 | 2 |
| Jeris Lee Poindexter | Nate, Rafe | Louis | 2 | 1 |
| John P. Connolly | Officer Billy | Det. Jerry McCabe | 1 | 2 |
| José Zúñiga | Eduardo Lopez | Bobby Ruiz | 2 | 1 |
| Ken Lerner | Harry Stopak, Stan Seidel | David Neiberg | 2 | 1 |
| Tobin Bell | Dr. Gary Wertz | Donald Selness, Jerry the Artist | 1 | 2 |
| John Prosky | Mr. Brooks | Frederick Converse | 4 | 1 |
| Anne Haney | Mrs. Packer | Mrs. Reese | 1 | 1 |
| Dennis Burkley | Tom Perry | Ernie | 1 | 1 |
| Fredric Lehne | Bum's Friend | Mark Drennan | 1 | 1 |
| Ivonne Coll | Grandmother | Latina Woman | 1 | 1 |
| Lillian Hurst | Mrs. Landeta | Mrs. Marquez | 1 | 1 |
| Louis Mustillo | Steve O'Brien | Tommy Furmento | 1 | 1 |
| Miguel Sandoval | Mr. Perez | Mr. Beltran | 1 | 1 |
| Richard Kline | Arnie Nadler | Sidney Herman | 1 | 1 |
| Steven Anderson | Dr. Davitch | Bob Marks | 2 | 2 |
| Bradford Tatum | Detective Reitz | Michael DiLeo, Roger Squires | 1 | 2 |
| John F. O'Donohue | Mr. Goodwin | Court Clerk | 1 | 2 |
| Shaun Duke | Detective, Painter | Stan Heyward | 2 | 1 |
| Joe Sabatino | Pilot | Giardella's Lieutenant, Guard | 1 | 3 |
| Art Chudabala | Greg | Jimmy | 1 | 1 |
| Barbara Roberts | Adelina's Grandmother | Rosalie | 1 | 1 |
| Bill Bolender | Hank Riley | Angus Riker | 2 | 1 |
| Graham Jarvis | Francis | Mr. Galan | 1 | 1 |
| Janet MacLachlan | Mother Lawrence | Louise | 1 | 1 |
| John Apicella | Mr. Etheridge | Councilman Paul Manos | 1 | 1 |
| John DiSanti | Uncle Ted | Frank Delva | 1 | 1 |
| Mark Bramhall | Weisner | Tom | 1 | 1 |
| Michael Fox | Mr. Bozinsky | Rabbi Rosenthal | 1 | 1 |
| Michael Rapaport | Paul Canterna | Jaime DiLeo | 1 | 1 |
| Robert DoQui | Minister | Warren Leight | 1 | 1 |
| Ronald Hunter | Juror Two | Bartender | 1 | 1 |
| Tamara Clatterbuck | Suzannah Harris | Deena Farnham | 1 | 1 |
| Tom La Grua | Mr. Leonelli | Jim DeLucci | 1 | 1 |
| Wanda-Lee Evans | Mrs. Dorsett | Court Clerk, Gloria Leight, Housewife | 1 | 3 |
| Adrian Ricard | Mrs. Howard | Landlady | 2 | 1 |
| Bruce Beatty | Howard | Tahir Sewell | 1 | 2 |
| Michael Jace | Bill Nelson | A.D.A. Vernon Shore | 2 | 1 |
| Ted Marcoux | Derek Fossen | Doug | 2 | 1 |
| Annie O'Donnell | Eve | Maud Riker | 1 | 1 |
| Caroline Lagerfelt | Andrea | Kitty Lear | 1 | 1 |
| Cec Verrell | Mrs. Casey | Gail Keller | 1 | 1 |
| Clayton Rohner | Roger Anderson | Earl Padzik | 1 | 1 |
| Diane Salinger | Sophie's Mom | Bea Duffy | 1 | 1 |
| Lola Glaudini | Capt. Jen Whitley | Karen Thanos | 1 | 1 |
| Marco Rodríguez | Agent Serena | Ramon Lopez | 1 | 1 |
| Patricia Healy | Priscilla | Alice Archer | 1 | 1 |
| Penny Fuller | Mrs. Constantine | Roberta Taub | 1 | 1 |
| Ping Wu | Mr. Cheung | Woo Shu Kwan | 1 | 1 |
| Ralph Monaco | Mr. Specchierla | Dominic Gennaro | 1 | 1 |
| Richard Schiff | Mr. Bartoli | Vartan Illiescu | 1 | 1 |
| Tim Quill | Josh Torren | Paddy Perkins | 1 | 1 |
| Ernie Lee Banks | Man in Crowd, Old Man | Delmar | 2 | 1 |
| Joe Basile | Officer Tom Bennini | Officer Pulaski | 2 | 1 |
| Angela Paton | Mrs. Ransom | Josephine Stevens | 1 | 1 |
| Bertila Damas | Dr. Debra Wexler | Dee Dee Santini | 1 | 1 |
| Bill Henderson | Charley Barnes | Verdis | 1 | 1 |
| Billy Gallo | Captain Hutch | Jimmy Del Marco | 1 | 1 |
| Brian Cousins | Allman | Chaz Hildum | 1 | 1 |
| Brigid Brannagh | Jamie Hendricks | Sandy Rowe | 1 | 1 |
| Carol Ann Susi | Mrs. Clark | Connie | 1 | 1 |
| Dwayne L. Barnes | Officer Pinter | Rodney | 1 | 1 |
| Finn Carter | Carrie Deal | Ellen Lippert | 1 | 1 |
| Gina Gallego | Instructor | Consuelo Delgado | 1 | 1 |
| Javi Mulero | Deltorre | Joey | 2 | 1 |
| John Rubinstein | Dr. Kenner | Matthew Bernstein | 1 | 1 |
| Jose Yenque | Wardell | Rico | 1 | 1 |
| Julius Tennon | Mr. Stegman, Uniform Cop | William Danton | 2 | 1 |
| Karen Ludwig | Madeline Shem | Nurse | 1 | 1 |
| Paul Perri | Monty | Walter Markham | 1 | 1 |
| Tim Kelleher | U.S. Embassy Official | Uniformed Cop | 1 | 1 |
| M. Darnell Suttles | Lemoyne | Black Witness | 2 | 1 |
| Warren Sweeney | Mr. Tierny | Medical Examiner Devlin | 1 | 2 |
| Albert Henderson | Olaf | Mr. Markham | 1 | 1 |
| Anna Berger | Mr. Brazil's Caregiver | Marian Kadell | 1 | 1 |
| Dana Gladstone | Weingarten's Trepanation Expert | Leo Vitale, Esq. | 1 | 1 |
| David Byrd | Howard Waller | Judge | 1 | 1 |
| Harris Laskawy | Siebert | Frankie Cantor | 1 | 1 |
| John Verea | Ernain | Jorge Fuentes | 1 | 1 |
| Lawrence Adisa | Josh's Cousin | Charlton Moody | 1 | 1 |
| Lynn Wanlass | Margo Aikin | Lisa Machurski | 1 | 1 |
| Maria Celedonio | Luisa | Lydia Garcia | 1 | 1 |
| Nicolette Scorsese | Pamela | Francine | 1 | 1 |
| Robert Silver | Dr. Martin Adelstein | Leo Archer, Esq. | 1 | 1 |
| Seth Isler | Kirchman | Bielski | 1 | 1 |
| Earnestine Phillips | Nancy | E.M.S. | 1 | 2 |
| Joe Lisi | Lieutenant Swersky, Mr. Gunther | Giamatti | 2 | 1 |
| Robert Gossett | Dr. Everett Daniels | Lonnie Edwards | 2 | 1 |
| Cynthia Martells | Andrea Thompson | Rose Melina | 1 | 1 |
| Daniel Quinn | Casey | Gallagher | 1 | 1 |
| Eileen Ryan | Barbara Dean | Mrs. Treet | 1 | 1 |
| Gina Mastrogiacomo | Ms. Myra | Chicky | 1 | 1 |
| Ivory Ocean | Mr. Preston | Reverend | 1 | 1 |
| John Cassini | Zamboni Driver | Leo Cooper | 1 | 1 |
| Mary Joy | Mona | Inga Wentz | 1 | 1 |
| Micole Mercurio | Marguerite Janeway | Mrs. McBride | 1 | 1 |
| Peter Jacobson | Susan's molester | Reporter #1 | 1 | 1 |
| Roz Witt | Saleswoman | Neighbor | 1 | 1 |
| Melissa Chan | Dr. Leung Joo Hua | Massage Girl | 2 | 1 |
| Tim Halligan | Howard | Doctor | 1 | 2 |
| Andrew Walker | Jack | Dr. Zisk | 1 | 1 |
| Bernard White | Addict seeking Rapid Detox | Gerardo | 1 | 1 |
| David Dunard | Irish Guy | Det. Chris Doudell | 1 | 1 |
| Gino Montesinos | Officer Nunez | Colombian | 1 | 1 |
| Joey Naber | Santa Juan | Ronnie Pinera | 1 | 1 |
| Kirk B.R. Woller | Prisoner Transport Officer | Mitch | 1 | 1 |
| Larry Brandenburg | Mr. Lensky | Capt. Wallenbeck | 1 | 1 |
| Matthew Faison | Dr. Weinstein | Charles Emery, Esq. | 1 | 1 |
| Monti Sharp | Henry | Rodney Wellstone | 1 | 1 |
| Richard Whiten | Lawyer | IAB Detective | 1 | 1 |
| Robert Cicchini | Channel 5 Chopper Reporter | Nicky Costantino | 1 | 1 |
| Carlease Burke | Policewoman | Court Officer | 1 | 1 |
| David St. James | Kaplan | Line Up #6 | 1 | 1 |
| David Warshofsky | Hostage Negotiator | Bruce Krieger | 1 | 1 |
| Erin LeShawn Wiley | Shelly | Felicia | 1 | 1 |
| John David Conti | Tony Pipitone | Judge | 1 | 1 |
| John Hostetter | Burke Newton | Chef | 1 | 1 |
| Josh Cruze | Boss | Jose Delgado | 1 | 1 |
| Kymberly Newberry | Mrs. Bryant | Employee | 1 | 1 |
| Lenny Citrano | Martin | Det. Sharma | 1 | 1 |
| Mik Scriba | James' Father | Bartender | 1 | 1 |
| Ron Dean | Uncle Joey | Vincent Mackie | 1 | 1 |
| Ron Taylor | Bob | Prisoner | 1 | 1 |
| Anne Betancourt | Mrs. Kearney | Miriam De Guzman | 1 | 1 |
| Bernardo Hiller | Ari Steiner | Stein | 1 | 1 |
| Jack Shearer | Hal Grunwald | Seymour Gold | 1 | 1 |
| Michael Andrew Kelly | Cop #1 | Officer Marini | 1 | 1 |
| Michael Mantell | Mr. Spencer | Steve White | 1 | 1 |
| Mo Gallini | Guy | Jay Dolinky | 1 | 1 |
| Patricia Belcher | Ward Nurse | Detective | 1 | 1 |
| Armando Molina | Sgt. Pete Jackson | Paperhanger #1 | 1 | 1 |
| Basil Wallace | Mr. Campbell | Reginald Harris | 1 | 1 |
| Maurice Sherbanee | Cab Driver | Super | 1 | 1 |
| Ralph Seymour | tbd | Richard Herman, Esq. | 1 | 1 |
| Al Pugliese | Angelo | Supervisor Kozyck | 1 | 1 |
| Cynthia Avila | Psych Clerk | Mrs. Diaz | 1 | 1 |
| James DuMont | Clemens | Uniform Officer | 1 | 1 |
| Joe Minjares | Phil | Father Ramos | 1 | 1 |
| Kristopher Logan | Lobster Man | Clarke | 1 | 1 |
| Maria Cellario | Mrs. Baba | Defense Lawyer | 1 | 1 |
| Ralph Meyering, Jr. | Detective | Major Perkins | 1 | 1 |
| Suzanne Krull | Mary Grant | Junie | 1 | 1 |
| Albert Garcia | Cop | Tito | 1 | 1 |
| Bruno Alexander | Berman | Detective Franchini | 1 | 1 |
| Colleen McQuade | Isabel Randall | Heidi Archer | 1 | 1 |
| Gerry Del Sol | Security Officer | Paperhanger #2 | 1 | 1 |
| Mary-Pat Green | Miss McDuffy | Bartender #2 | 1 | 1 |
| Naomi Serotoff | Grace | Bystander #1 | 1 | 1 |
| Robert Mont | Animal Control Cop | Mr. Dunbar | 1 | 1 |
| Tom McCleister | Larry | Corrections Officer | 1 | 1 |
| Benjamin W. S. Lum | Judge | Waiter | 1 | 1 |
| Haskell V. Anderson III | Chaplain | Clyde Hayes | 1 | 1 |
| Michael Waltman | Dalby | Theodore Tierney | 1 | 1 |
| Phyllis Flax | Regina Hunter | Mrs. Milburn | 1 | 1 |
| Ralph P. Martin | Woody | Super | 1 | 1 |
| Chris Nelson Norris | Ivan Pachecko | David Mitchell | 1 | 1 |
| Jermaine Montell | Bo | Buyer #2 | 1 | 1 |
| Stan Sellers | James | Bystander #4 | 1 | 1 |
| Cynthena Sanders | Scrub Nurse #2 | Receptionist | 1 | 1 |
| Earl Carroll | George Zito | Court Clerk | 1 | 1 |
| Jean Hubbard | Juror One | Screaming Woman #1 | 1 | 1 |
| Michael Manuel | Richard Randall | Ambulance Attendant | 1 | 1 |
| Sean Moran | Mr. Blinker | Drunk | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.